[Bug 680085] New: Screen blanks while working, EDID checksum error in log

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16 Mar 2011 16 Mar '11

10:13

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c0 Summary: Screen blanks while working, EDID checksum error in log Classification: openSUSE Product: openSUSE 11.4 Version: Final Platform: Other OS/Version: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel AssignedTo: kernel-maintainers@forge.provo.novell.com ReportedBy: joschibrauchle@gmx.de QAContact: qa@suse.de Found By: --- Blocker: --- Created an attachment (id=419617) --> (http://bugzilla.novell.com/attachment.cgi?id=419617) hwinfo User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US) AppleWebKit/534.16 (KHTML, like Gecko) Chrome/10.0.648.133 Safari/534.16 I have a fresh install of 11.4 running with a dual monitor setup with Intel 965Q grafics. The /var/log/messages is showing the following messages continously, roughly every 22.5 minutes: ------- Mar 16 10:49:06 st-brauchle kernel: [ 4644.141550] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 96 Mar 16 10:49:06 st-brauchle kernel: [ 4644.141553] [drm:drm_edid_block_valid] *ERROR* Raw EDID: Mar 16 10:49:06 st-brauchle kernel: [ 4644.141556] <3>00 ff ff ff ff ff ff 00 1a b3 52 05 01 01 01 01 ..........R..... Mar 16 10:49:06 st-brauchle kernel: [ 4644.141558] <3>0c 0f 01 03 80 26 1e 78 2a ee 95 a3 54 4c 99 26 .....&.x*...TL.& Mar 16 10:49:06 st-brauchle kernel: [ 4644.141560] <3>0f 50 54 a5 4b 00 81 80 01 01 01 01 01 01 01 01 .PT.K........... Mar 16 10:49:06 st-brauchle kernel: [ 4644.141562] <3>01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70 ......0*..Q.*@0p Mar 16 10:49:06 st-brauchle kernel: [ 4644.141563] <3>13 00 78 2d 11 00 00 1e 00 00 00 fd 00 38 4c 1e ..x-.........8L. Mar 16 10:49:06 st-brauchle kernel: [ 4644.141565] <3>52 0e 00 0a 20 20 20 20 20 20 00 00 00 fc 00 50 R... .....P Mar 16 10:49:06 st-brauchle kernel: [ 4644.141567] <3>31 39 2d 32 0a 20 20 20 20 20 20 20 00 00 00 ff 19-2. .... Mar 16 10:49:06 st-brauchle kernel: [ 4644.141569] <3>01 0a e1 91 95 7f ff ff ff ff ff ff ff ff ff ff ................ Mar 16 10:49:06 st-brauchle kernel: [ 4644.141570] ------- The remainder and the hex values are DIFFERENT every time! Usually, there is no problem other than this message. But this morning, while I was working on the machine, suddenly the left of 2 screens went blank and the log said in addition to the above error: ------- Mar 16 10:50:16 st-brauchle acpid: client 2885[0:0] has disconnected Mar 16 10:50:16 st-brauchle acpid: client connected from 2885[0:0] Mar 16 10:50:16 st-brauchle acpid: 1 client rule loaded ------- The screen never came back and I had to reboot the machine. Reproducible: Couldn't Reproduce Steps to Reproduce: 1. 2. 3. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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16 Mar 16 Mar

10:35

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c1 --- Comment #1 from Joschi Brauchle 2011-03-16 10:35:20 UTC --- Additional info: The grafics card has a DMS-59 connector and I use a "DMS-59 to dual DVI" adapter cable to connect two identical monitors. I was running this setup successfully with OpenSUSE 11.3, no problems at all. We have about 50 identical machines running this setup on 11.1, also no problems. My problem seems to be very similar to the one described on the following kernel-commit, except that I am not using "DisplayPort to duallink DVI" but "DMS-59 to dual DVI": ------- commit 0f37a87fae33bbca1e2ff289330c2f4ba93b5064 Author: David Flynn Date: Wed Dec 8 16:10:21 2010 +0000 drm/i915/dp: Fix I2C/EDID handling with active DisplayPort to DVI converter commit 8316f33766a82907c694267ff911e45e256f09f9 upstream. The DisplayPort standard (1.1a) states that: The I2C-over-AUX Reply field is valid only when Native AUX CH Reply field is AUX_ACK (00). When Native AUX CH Reply field is not 00, then, I2C-over-AUX Reply field must be 00 and be ignored. This fixes broken EDID reading when using an active DisplayPort to duallink DVI converter. If the AUX CH replier chooses to defer the transaction, a short read occurs and erroneous data is returned as the i2c reply due to a lack of length checking and failure to check for AUX ACK. As a result, broken EDIDs can look like: 0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef 00: bc bc bc ff bc bc bc ff bc bc bc ac bc bc bc 45 ???.???.???????E 10: bc bc bc 10 bc bc bc 34 bc bc bc ee bc bc bc 4c ???????4???????L 20: bc bc bc 50 bc bc bc 00 bc bc bc 40 bc bc bc 00 ???P???.???@???. 30: bc bc bc 01 bc bc bc 01 bc bc bc a0 bc bc bc 40 ???????????????@ 40: bc bc bc 00 bc bc bc 00 bc bc bc 00 bc bc bc 55 ???.???.???.???U 50: bc bc bc 35 bc bc bc 31 bc bc bc 20 bc bc bc fc ???5???1??? ???? 60: bc bc bc 4c bc bc bc 34 bc bc bc 46 bc bc bc 00 ???L???4???F???. 70: bc bc bc 38 bc bc bc 11 bc bc bc 20 bc bc bc 20 ???8??????? ??? 80: bc bc bc ff bc bc bc ff bc bc bc ff bc bc bc ff ???.???.???.???. ... which can lead to: [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder [drm:drm_edid_block_valid] *ERROR* Raw EDID: <3>30 30 30 30 30 30 30 32 38 32 30 32 63 63 31 61 000000028202cc1a <3>28 00 02 8c 00 00 00 00 18 00 00 00 00 00 00 00 (............... <3>20 4c 61 73 74 20 62 65 61 63 6f 6e 3a 20 33 32 Last beacon: 32 <3>32 30 6d 73 20 61 67 6f 46 00 05 8c 00 00 00 00 20ms agoF....... <3>36 00 00 00 00 00 00 00 00 0c 57 69 2d 46 69 20 6.........Wi-Fi <3>52 6f 75 74 65 72 01 08 82 84 8b 96 24 30 48 6c Router......$0Hl <3>03 01 01 06 02 00 00 2a 01 00 2f 01 00 32 04 0c .......*../..2.. <3>12 18 60 dd 09 00 10 18 02 00 00 01 00 00 18 00 ..`............. Signed-off-by: David Flynn [ickle: fix up some surrounding checkpatch warnings] Signed-off-by: Chris Wilson Signed-off-by: Greg Kroah-Hartman ------- -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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10:42

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c Joschi Brauchle changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|Normal |Major -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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15:32

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c2 Andre Barros changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |andre.cbarros@yahoo.com --- Comment #2 from Andre Barros 2011-03-16 15:32:07 UTC --- Hi, Try downloading the source package xorg-x11-driver-video from openSUSE (perhaps, from factory repo - http://download.opensuse.org/factory/repo/src-oss/suse/src/) and the xf86-video-intel-2.14.901.tar.bz2 from http://xorg.freedesktop.org/archive/individual/driver/ install the src.rpm (rpm -ivh) and copy xf86* to your source package dir (usually /usr/src/packages/SOURCES) and run (from /usr/src/packages/SPECS): rpmbuild -bb package xorg-x11-driver-video.spec after changing the version of intel driver to the one you downloaded and disabled the patch 155 (put # on the start of line). Install the generated package (will be on /usr/src/packages/RPMS/<your archtecture>/) with: rpm -Uvh <generate package> fixed most of my problems. Regards, Andre -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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17 Mar 17 Mar

11:08

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c3 Joschi Brauchle changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |joschibrauchle@gmx.de --- Comment #3 from Joschi Brauchle 2011-03-17 11:08:07 UTC --- Hey Andre, thanks first of all for the very detailed instructions, I was able to upgrade to the v2.14.901 Intel drivers as you described above. Unfortunately, the EDID errors still appear. ------- Mar 17 11:26:21 tm kernel: [ 2080.090005] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 187 Mar 17 11:26:21 tm kernel: [ 2080.090008] [drm:drm_edid_block_valid] *ERROR* Raw EDID: Mar 17 11:26:21 tm kernel: [ 2080.090010] <3>00 ff ff ff ff ff ff 00 1a b3 52 05 47 d6 07 00 ..........R.G... Mar 17 11:26:21 tm kernel: [ 2080.090012] <3>1d 11 01 03 80 26 1e 78 2a ee 95 a3 54 4c 99 26 .....&.x*...TL.& Mar 17 11:26:21 tm kernel: [ 2080.090014] <3>0f 50 54 a5 4b 00 81 80 0f ff ff ff ff ff ff ff .PT.K........... Mar 17 11:26:21 tm kernel: [ 2080.090016] <3>ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ Mar 17 11:26:21 tm kernel: [ 2080.090018] <3>ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ Mar 17 11:26:21 tm kernel: [ 2080.090019] <3>ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ Mar 17 11:26:21 tm kernel: [ 2080.090021] <3>ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ Mar 17 11:26:21 tm kernel: [ 2080.090023] <3>ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ Mar 17 11:26:21 tm kernel: [ 2080.090024] Mar 17 11:26:21 tm kernel: [ 2080.147090] i2c i2c-10: sendbytes: NAK bailout. Mar 17 11:26:21 tm kernel: [ 2080.162124] i2c i2c-10: sendbytes: NAK bailout. Mar 17 11:48:34 tm kernel: [ 3413.031205] i2c i2c-10: sendbytes: NAK bailout. Mar 17 11:48:34 tm kernel: [ 3413.071426] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 78 Mar 17 11:48:34 tm kernel: [ 3413.071428] [drm:drm_edid_block_valid] *ERROR* Raw EDID: Mar 17 11:48:34 tm kernel: [ 3413.071431] <3>00 ff ff ff ff ff ff 00 1a b3 52 05 47 d6 07 00 ..........R.G... Mar 17 11:48:34 tm kernel: [ 3413.071433] <3>1d 11 01 07 00 00 3f ff ff ff ff ff ff ff ff ff ......?......... Mar 17 11:48:34 tm kernel: [ 3413.071435] <3>ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ Mar 17 11:48:34 tm kernel: [ 3413.071437] <3>ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ Mar 17 11:48:34 tm kernel: [ 3413.071439] <3>ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ Mar 17 11:48:34 tm kernel: [ 3413.071440] <3>ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ Mar 17 11:48:34 tm kernel: [ 3413.071442] <3>ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ Mar 17 11:48:34 tm kernel: [ 3413.071444] <3>ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ Mar 17 11:48:34 tm kernel: [ 3413.071445] ------- They keep on repeating every 22min+10sec approximately. Once in a while they are joined by "i2c i2c-10: sendbytes: NAK bailout." messages. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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12:57

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c4 --- Comment #4 from Andre Barros 2011-03-17 12:57:56 UTC --- See also: https://bugzilla.novell.com/show_bug.cgi?id=679899 This is probably a somewhat hard thing to solve on your case, as it seems to be related also to the linux kernel. See the following links: http://www.mail-archive.com/dri-devel@lists.freedesktop.org/msg00803.html http://forums.nvidia.com/index.php?showtopic=194041 Perhaps, if you follow the instruction on last link and change your xorg.conf file (/etc/X11) you will be able to get around it. Good luck, Andre -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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21 Mar 21 Mar

16:46

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c5 --- Comment #5 from Joschi Brauchle 2011-03-21 16:46:03 UTC --- It seems like this is a common problem with the kernel checking the EDID block. There seem to be many monitors out there with incorrect checksums. Thus, there is a patch for the kernel to disable EDID checking: http://lists.freedesktop.org/archives/dri-devel/2011-January/006778.html -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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19:36

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c6 --- Comment #6 from Andre Barros 2011-03-21 19:36:52 UTC --- (In reply to comment #5)

...

It seems like this is a common problem with the kernel checking the EDID block. There seem to be many monitors out there with incorrect checksums.

Thus, there is a patch for the kernel to disable EDID checking: http://lists.freedesktop.org/archives/dri-devel/2011-January/006778.html

Thanks for the link. Perhaps, I will be able to reconnect my KVM switch to my main desktop with that patch. Best regards, Andre -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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28 Mar 28 Mar

09:51

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c7 --- Comment #7 from Joschi Brauchle 2011-03-28 09:51:34 UTC --- This morning the problem was even worse: I was working on the machine when first the left monitor blanked, then 5 minutes later the right monitor blanked. After this, the machine was not even accessible via SSH, so it looks like it completely crashed after the second monitor blanked. Is there any way I can keep kernel mode setting but disable monitor autoconfiguration? Will the EDID probem disappear when I configure the two monitors via an xorg.conf or will the kernel continue checking the EDID block? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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09:51

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c Joschi Brauchle changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P5 - None |P2 - High -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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11:41

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c8 --- Comment #8 from Joschi Brauchle 2011-03-28 11:41:02 UTC --- I just tested the system with only a single monitor attached to the "DMS-59 to dual DVI" adaper: same problem. So the problem is not related to dual-head mode. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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16:16

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c9 --- Comment #9 from Joschi Brauchle 2011-03-28 16:16:11 UTC --- Created an attachment (id=421720) --> (http://bugzilla.novell.com/attachment.cgi?id=421720) Kernel Bug message -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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16:16

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c10 --- Comment #10 from Joschi Brauchle 2011-03-28 16:16:54 UTC --- Just received a kernel bug message in a file called "i915_gem.c" which seems related! -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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16:19

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c Joschi Brauchle changed: What |Removed |Added ---------------------------------------------------------------------------- Severity|Major |Critical -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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29 Mar 29 Mar

08:07

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c11 --- Comment #11 from Joschi Brauchle 2011-03-29 08:07:29 UTC --- I turned on drm debugging via "drm.debug=0x06" and got a little more detail: ------ Mar 29 09:53:41 tm kernel: [52202.024240] [drm:intel_sdvo_debug_write], SDVOB: W: 0B (SDVO_CMD_GET_ATTACHED_DISPLAYS) Mar 29 09:53:41 tm kernel: [52202.028840] [drm:intel_sdvo_read_response], SDVOB: R: (Success) 01 00 Mar 29 09:53:41 tm kernel: [52202.032242] [drm:intel_sdvo_detect], SDVO response 1 0 [1] Mar 29 09:53:41 tm kernel: [52202.032247] [drm:intel_sdvo_debug_write], SDVOB: W: 7A 02 (SDVO_CMD_SET_CONTROL_BUS_SWITCH) Mar 29 09:53:41 tm kernel: [52202.038037] [drm:intel_sdvo_debug_write], SDVOB: W: 7A 02 (SDVO_CMD_SET_CONTROL_BUS_SWITCH) Mar 29 09:53:41 tm kernel: [52202.086011] [drm:intel_crt_detect], CRT not detected via hotplug Mar 29 09:53:41 tm kernel: [52202.086014] [drm:output_poll_execute], [CONNECTOR:5:VGA-1] status updated from 2 to 2 Mar 29 09:53:41 tm kernel: [52202.086017] [drm:intel_sdvo_debug_write], SDVOB: W: 0B (SDVO_CMD_GET_ATTACHED_DISPLAYS) Mar 29 09:53:41 tm kernel: [52202.088083] [drm:intel_sdvo_write_cmd], I2c transfer returned -6 Mar 29 09:53:41 tm kernel: [52202.088086] [drm:output_poll_execute], [CONNECTOR:8:DVI-D-1] status updated from 1 to 3 Mar 29 09:53:41 tm kernel: [52202.088089] [drm:intel_sdvo_debug_write], SDVOC: W: 0B (SDVO_CMD_GET_ATTACHED_DISPLAYS) Mar 29 09:53:41 tm kernel: [52202.090152] [drm:intel_sdvo_write_cmd], I2c transfer returned -6 Mar 29 09:53:41 tm kernel: [52202.090155] [drm:output_poll_execute], [CONNECTOR:10:DVI-D-2] status updated from 2 to 3 Mar 29 09:53:41 tm kernel: [52202.092102] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 92 Mar 29 09:53:41 tm kernel: [52202.092104] [drm:drm_edid_block_valid] *ERROR* Raw EDID: Mar 29 09:53:41 tm kernel: [52202.092107] <3>00 ff ff ff ff ff ff 00 1a b3 52 05 2c d0 07 00 ..........R.,... Mar 29 09:53:41 tm kernel: [52202.092109] <3>1b 11 01 03 80 26 1e 78 2a ee 95 a3 54 4c 99 26 .....&.x*...TL.& Mar 29 09:53:41 tm kernel: [52202.092111] <3>0f 50 54 a5 4b 00 81 80 01 01 01 01 01 01 01 01 .PT.K........... Mar 29 09:53:41 tm kernel: [52202.092113] <3>01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70 ......0*..Q.*@0p Mar 29 09:53:41 tm kernel: [52202.092115] <3>13 00 78 2d 11 00 00 1e 00 00 00 fd 00 38 4c 1e ..x-.........8L. Mar 29 09:53:41 tm kernel: [52202.092117] <3>52 0e 00 0a 20 20 20 20 20 20 00 00 00 fc 00 50 R... .....P Mar 29 09:53:41 tm kernel: [52202.092118] <3>31 39 2d 32 0a 20 20 20 20 20 20 20 00 00 00 ff 19-2. .... Mar 29 09:53:41 tm kernel: [52202.092120] <3>01 80 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ................ Mar 29 09:53:41 tm kernel: [52202.092122] Mar 29 09:53:41 tm kernel: [52202.092123] [drm:intel_sdvo_debug_write], SDVOB: W: 7A 02 (SDVO_CMD_SET_CONTROL_BUS_SWITCH) Mar 29 09:53:41 tm kernel: [52202.146071] [drm:intel_sdvo_debug_write], SDVOC: W: 0B (SDVO_CMD_GET_ATTACHED_DISPLAYS) Mar 29 09:53:41 tm kernel: [52202.150644] [drm:intel_sdvo_read_response], SDVOC: R: (Success) 00 00 Mar 29 09:53:41 tm kernel: [52202.154019] [drm:intel_sdvo_detect], SDVO response 0 0 [1] Mar 29 09:53:41 tm kernel: [52202.160037] [drm:intel_crt_detect], CRT not detected via hotplug Mar 29 09:53:41 tm kernel: [52202.160436] [drm:intel_sdvo_debug_write], SDVOB: W: 0B (SDVO_CMD_GET_ATTACHED_DISPLAYS) Mar 29 09:53:41 tm kernel: [52202.165024] [drm:intel_sdvo_read_response], SDVOB: R: (Success) 01 00 Mar 29 09:53:41 tm kernel: [52202.168397] [drm:intel_sdvo_detect], SDVO response 1 0 [1] Mar 29 09:53:41 tm kernel: [52202.168400] [drm:intel_sdvo_debug_write], SDVOB: W: 7A 02 (SDVO_CMD_SET_CONTROL_BUS_SWITCH) Mar 29 09:53:41 tm kernel: [52202.174171] [drm:intel_sdvo_debug_write], SDVOB: W: 7A 02 (SDVO_CMD_SET_CONTROL_BUS_SWITCH) Mar 29 09:53:41 tm kernel: [52202.228104] [drm:intel_sdvo_debug_write], SDVOC: W: 0B (SDVO_CMD_GET_ATTACHED_DISPLAYS) Mar 29 09:53:41 tm kernel: [52202.232676] [drm:intel_sdvo_read_response], SDVOC: R: (Success) 00 00 Mar 29 09:53:41 tm kernel: [52202.236050] [drm:intel_sdvo_detect], SDVO response 0 0 [1] Mar 29 09:53:41 tm kernel: [52202.242037] [drm:intel_crt_detect], CRT not detected via hotplug Mar 29 09:53:51 tm kernel: [52212.134016] [drm:intel_crt_detect], CRT not detected via hotplug Mar 29 09:53:51 tm kernel: [52212.134022] [drm:output_poll_execute], [CONNECTOR:5:VGA-1] status updated from 2 to 2 Mar 29 09:53:51 tm kernel: [52212.134028] [drm:intel_sdvo_debug_write], SDVOB: W: 0B (SDVO_CMD_GET_ATTACHED_DISPLAYS) Mar 29 09:53:51 tm kernel: [52212.138627] [drm:intel_sdvo_read_response], SDVOB: R: (Success) 01 00 Mar 29 09:53:51 tm kernel: [52212.142017] [drm:intel_sdvo_detect], SDVO response 1 0 [1] Mar 29 09:53:51 tm kernel: [52212.142022] [drm:intel_sdvo_debug_write], SDVOB: W: 7A 02 (SDVO_CMD_SET_CONTROL_BUS_SWITCH) Mar 29 09:53:51 tm kernel: [52212.147821] [drm:intel_sdvo_debug_write], SDVOB: W: 7A 02 (SDVO_CMD_SET_CONTROL_BUS_SWITCH) Mar 29 09:53:51 tm kernel: [52212.201919] [drm:output_poll_execute], [CONNECTOR:8:DVI-D-1] status updated from 3 to 1 Mar 29 09:53:51 tm kernel: [52212.201924] [drm:intel_sdvo_debug_write], SDVOC: W: 0B (SDVO_CMD_GET_ATTACHED_DISPLAYS) Mar 29 09:53:51 tm kernel: [52212.206513] [drm:intel_sdvo_read_response], SDVOC: R: (Success) 00 00 Mar 29 09:53:51 tm kernel: [52212.209905] [drm:intel_sdvo_detect], SDVO response 0 0 [1] Mar 29 09:53:51 tm kernel: [52212.209909] [drm:output_poll_execute], [CONNECTOR:10:DVI-D-2] status updated from 3 to 2 Mar 29 09:53:51 tm kernel: [52212.211953] [drm:intel_sdvo_debug_write], SDVOB: W: 0B (SDVO_CMD_GET_ATTACHED_DISPLAYS) Mar 29 09:53:51 tm kernel: [52212.216525] [drm:intel_sdvo_read_response], SDVOB: R: (Success) 01 00 Mar 29 09:53:51 tm kernel: [52212.219900] [drm:intel_sdvo_detect], SDVO response 1 0 [1] Mar 29 09:53:51 tm kernel: [52212.219903] [drm:intel_sdvo_debug_write], SDVOB: W: 7A 02 (SDVO_CMD_SET_CONTROL_BUS_SWITCH) Mar 29 09:53:51 tm kernel: [52212.225675] [drm:intel_sdvo_debug_write], SDVOB: W: 7A 02 (SDVO_CMD_SET_CONTROL_BUS_SWITCH) Mar 29 09:53:51 tm kernel: [52212.279601] [drm:intel_sdvo_debug_write], SDVOC: W: 0B (SDVO_CMD_GET_ATTACHED_DISPLAYS) Mar 29 09:53:51 tm kernel: [52212.284181] [drm:intel_sdvo_read_response], SDVOC: R: (Success) 00 00 Mar 29 09:53:51 tm kernel: [52212.287553] [drm:intel_sdvo_detect], SDVO response 0 0 [1] Mar 29 09:53:51 tm kernel: [52212.293038] [drm:intel_crt_detect], CRT not detected via hotplug ------ The status of CONNECTOR:8:DVI-D-1 is usually equal to 1, but for whatever reason at this time it changes to 3 after an "I2c transfer returned -6" message. 10 seconds later the status value returns to 1 again. The screen did not blank during this phase. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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08:11

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c12 --- Comment #12 from Joschi Brauchle 2011-03-29 08:11:29 UTC --- Interestingly, also the status of CONNECTOR:10:DVI-D-2 changes from 2 to 3, although there is nothing connected... -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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13:14

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c13 --- Comment #13 from Joschi Brauchle 2011-03-29 13:14:45 UTC --- Ok, so according to the FreeDesktop Bugzilla, this bug is already FIXED in kernel 2.6.28+! See my bug report there: https://bugs.freedesktop.org/show_bug.cgi?id=35758 So if anyone from Novell could PLEASE backport the fixes to OpenSUSE 11.4!!! -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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14:45

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c14 --- Comment #14 from Joschi Brauchle 2011-03-29 14:45:52 UTC --- Of course I meant 2.6.38 and up kernels... :-) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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30 Mar 30 Mar

18:01

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c15 Brandon Philips changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bphilips@novell.com --- Comment #15 from Brandon Philips 2011-03-30 18:01:29 UTC --- 007c80a5497a3f9c8393960ec6e6efd30955dcb1 was merged via -stable. I will build a new kernel with the second patch though. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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18:43

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c16 --- Comment #16 from Andre Barros 2011-03-30 18:43:12 UTC --- (In reply to comment #15)

...

007c80a5497a3f9c8393960ec6e6efd30955dcb1 was merged via -stable. I will build a new kernel with the second patch though.

Perhaps, you could also update to xf86-video-intel-2.14.902 or even better, to the last master of http://cgit.freedesktop.org/xorg/driver/xf86-video-intel/. It corrects lots of problems I had with terminal corruption and instablility. It would be nice also to decouple all the video drivers amassed on xorg-x11-driver-video package, as it eases the task involved on individual video driver update. I know the last "request" is hard to goes forth. My problems with my KVM went off using a custom xorg.ini and turn to "false" one of its options (HotPlug). Perhaps, my xorg.conf may be useful to someone else: # ----------------------------------------- # xorg.conf customized to evade edid errors # ----------------------------------------- Section "Monitor" Identifier "Monitor0" VendorName "Philips" ModelName "Philips LCD" EndSection Section "Device" Identifier "Card0" Driver "intel" BusID "PCI:0:2:0" Option "AccelMethod" "UXA" Option "DRI" "true" Option "DRI2" "true" Option "XAANoOffscreenPixmaps" "true" Option "MigrationHeuristic" "greedy" Option "Legacy3D" "false" Option "PageFlip" "true" Option "TripleBuffer" "false" #Option "Tiling" "true" #Option "Shadow" "true" Option "HotPlug" "false" Option "XvMC" "true" EndSection Section "Screen" Identifier "Screen0" Monitor "Monitor0" Device "Card0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 16 Modes "1280x1024" "1152x864" "1024x768" "800x600" EndSubSection SubSection "Display" Viewport 0 0 Depth 24 Modes "1280x1024" "1152x864" "1024x768" "800x600" EndSubSection EndSection Section "ServerLayout" Identifier "X.org Configured" Screen 0 "Screen0" 0 0 Option "AIGLX" "true" EndSection Section "Extensions" Option "Composite" "Enable" EndSection Section "DRI" Group "video" Mode 0666 EndSection # -------------------- # end of hotplug avert # -------------------- -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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31 Mar 31 Mar

17:56

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c17 --- Comment #17 from Brandon Philips 2011-03-31 17:56:45 UTC --- Please try out the kernel here: http://beta.suse.com/private/bphilips/opensuse-2011-03-31/ -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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1 Apr 1 Apr

23:08

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c18 --- Comment #18 from Andre Barros 2011-04-01 23:08:53 UTC --- (In reply to comment #17)

...

Please try out the kernel here: http://beta.suse.com/private/bphilips/opensuse-2011-03-31/

May you provide the patch? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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23:22

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c19 --- Comment #19 from Brandon Philips 2011-04-01 23:22:26 UTC --- (In reply to comment #18)

...

(In reply to comment #17)

...
Please try out the kernel here: http://beta.suse.com/private/bphilips/opensuse-2011-03-31/

May you provide the patch?

I don't understand your request. The patch is 4819d2e4310796c4e9eef674499af9b9caf36b5a. Did it work? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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2 Apr 2 Apr

00:05

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c20 --- Comment #20 from Andre Barros 2011-04-02 00:05:56 UTC --- I will check it out. I asked because I usually apply some patches to the kernel I run, and as such, have to rebuild from the original src.rpm. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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00:37

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c21 --- Comment #21 from Andre Barros 2011-04-02 00:37:27 UTC --- OK, did the tests. Had to downgrade xorg-x11-driver-video package to openSUSE original (version 7.6-52.4.x86_64). Result was the following: - Booting with default options (vga=0x31a) and no xorg.conf - -> Hang at start-up; - Booting without vga=0x31a and no xorg.conf- -> it loads the whole system, resolution is low (1024x768), corruption on terminal clients, KDE Control Center/Monitor adjustments makes the whole screen flicker; As I said, you probably needs to upgrade the xf86-video-intel-driver. The problems are less severe (corruption and instability), but they are still here. Will update xorg-x11-driver-video package and will post soon. Regards, André -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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01:01

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c22 --- Comment #22 from Andre Barros 2011-04-02 01:01:32 UTC --- Now with the updated xorg-x11-driver-video (intel trunk). Result was the following: - Booting with default options (vga=0x31a) and no xorg.conf - -> Hang at start-up; - Booting without vga=0x31a and no xorg.conf- -> it loads the whole system, resolution is low (1024x768), NO CORRUPTION on terminal clients, the desktop keeps flickering all the time with Xorg.0.log having continuously update with EDID probes, really bad. Booting with my xorg.conf fixes the flickering issue (and Xorg.0.log grow). Any testing or extra information that would be useful? Regards, André -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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01:05

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c23 --- Comment #23 from Andre Barros 2011-04-02 01:05:36 UTC --- Oh, forgot to say, all this with my my computer attached to my KVM (keyboard/Video/Mouse switcher) and on my old monitor. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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4 Apr 4 Apr

07:40

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c24 --- Comment #24 from Joschi Brauchle 2011-04-04 07:40:37 UTC --- Hello Brandon, first of all, thanks for your help! I tested the kernel you provided this morning. Unfortunately, 4 out of 5 tries, the boot hangs right at the start at the "Creating device nodes with udev" message. I am running the default 11.4 x11 video drivers. I did manage to boot it once to the kdm login, but then tested a reboot and never got it booting again. Next, I will try to boot without the vga=... option as Andre suggested and report back. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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13:28

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c25 --- Comment #25 from Joschi Brauchle 2011-04-04 13:28:36 UTC --- Ok, I cant boot the suggested kernel, even removing the vga option does not help. Letting the machine sit for a minute with the above "Creating..." message yield the attached output (taken with a camera, sorry for the size). -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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13:30

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c26 --- Comment #26 from Joschi Brauchle 2011-04-04 13:30:49 UTC --- Created an attachment (id=422978) --> (http://bugzilla.novell.com/attachment.cgi?id=422978) Screenshot kernel messages -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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8 Apr 8 Apr

11:00

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c27 --- Comment #27 from Andre Barros 2011-04-08 11:00:37 UTC --- (In reply to comment #26)

...

Created an attachment (id=422978) --> (http://bugzilla.novell.com/attachment.cgi?id=422978) [details] Screenshot kernel messages

Did you try 'nomodset' on boot options? Also, what is on your /var/log/boot.omsg? (You may need to first try to boot with the new kernel and, after that, boot with the good one) Regards, André -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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14:16

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c28 --- Comment #28 from Joschi Brauchle 2011-04-08 14:16:13 UTC --- Well, the problem for my setup is: the problem originally occurs with modesetting enabled, and I would like to keep modesetting on. Thus, trying to boot the test kernel with "nomodeset" doesn't really help to fix the original problem. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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15 Apr 15 Apr

00:29

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c29 Brandon Philips changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|kernel-maintainers@forge.pr |eich@novell.com |ovo.novell.com | --- Comment #29 from Brandon Philips 2011-04-15 00:29:44 UTC --- Egbert- Can you look into this. I provided a kernel in Comment #19 with 4819d2e drm: Retry i2c transfer of EDID block after failure but it didn't seem to help. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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18 Apr 18 Apr

15:31

New subject: [Bug 680085] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c30 Egbert Eich changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED --- Comment #30 from Egbert Eich 2011-04-18 15:31:56 UTC --- Sorry, there are several issues reported in this bug which are not really related to each other: 1. Bad EDID block. The patch suggested in comment #1 doesn't apply here as this is for DP to DVI connectors while a DMS59 is pure DVI. 2. Patches disabling EDID checking are a strategy out of desperation: EDID blocks from monitors are usually good (unless one managed to destroy the EDID data on a monitor - happened to me once). 3. Andre suggests to fix/update the X driver. This is not responsible for the wrong EDID readings in the kernel. 4. Crash: Mar 28 18:06:24 test114 kernel: [23777.388002] kernel BUG at /usr/src/packages/BUILD/kernel-desktop-2.6.37.1/linux-2.6.37/drivers/gpu/drm/i915/i915_gem.c:4201! This is due to the code: BUG_ON(obj_priv->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT); in i915_gem_object_pin(). the pin_count exceeds 15 possibly due to constant attempts to reset the mode. On the other hand I cannot identify a code path where an fb_object accidentally remains pinned. I don't agree with the assessment in https://bugs.freedesktop.org/show_bug.cgi?id=35758 about the cause. While I agree that 007c80a5 is an important patch it doesn't fix the crash seen here. 5. Andre suggests to boot without vga=... or with nomodeset. The former will avoid the bootsplash. That this will avoid hangs seems to be related to bnc #672008. Using nomodeset will cause KMS to be disabled - the intel driver will not work with that! 6. The EDID read out problems don't seem to go way with reprobing the EDID on failure. I can investigate if I find a system that shows such issues. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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15:33

New subject: [Bug 680085] [EDID] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c Egbert Eich changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|Screen blanks while |[EDID] Screen blanks while |working, EDID checksum |working, EDID checksum |error in log |error in log -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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19 Apr 19 Apr

09:59

New subject: [Bug 680085] [EDID] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c31 --- Comment #31 from Joschi Brauchle 2011-04-19 09:59:36 UTC --- Hello Egbert, I agree, there seem to have been some issues mixed in this report. The original problem I reported was about the bad EDID blocks being reported and causing the screen to go blank once in a while. I quoted the patch in comment #1 because the behavior I see is very similar so the one described. I am aware that the hardware is different though. I an certainly willing to help debugging the problem, as I have about 20 identically configured machines+monitors where this problem (will) occure(s). (will because I have not updated all of them to 11.4 due to this issue) One thing I think is interesting is that the repetition timeframe of the EDID errors is mostly something around 22 minutes (when the machine is used). So there seems to be a somewhat deterministic behavior here! Also, the EDID errors are often times reported when the monitor needs to be woken up from sleep. Are there any debug flags I could set to produce better logfiles? Disabling modesetting (and thus the intel driver), repeated EDID polling or disabling EDID completely as well as updating the intel driver are also not in my interest :-) Best regards and thanks for your help! Joschi -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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26 Apr 26 Apr

12:23

New subject: [Bug 680085] [EDID] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c32 Michal Čihař changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mcihar@novell.com --- Comment #32 from Michal Čihař 2011-04-26 14:23:01 CEST --- I just run into this issue (bad EDID and blank screen) as well. To workaround it you can do: echo 0 > /sys/module/drm_kms_helper/parameters/poll Following patch is reported to fix it (though I did not yet get to testing it): https://patchwork.kernel.org/patch/508681/ -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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2 Aug 2 Aug

15:55

New subject: [Bug 680085] [EDID] Screen blanks while working, EDID checksum error in log

https://bugzilla.novell.com/show_bug.cgi?id=680085 https://bugzilla.novell.com/show_bug.cgi?id=680085#c33 Jeff Mahoney changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED CC| |jeffm@suse.com Resolution| |WONTFIX --- Comment #33 from Jeff Mahoney 2012-08-02 11:55:49 EDT --- With the coming release of openSUSE 12.2, openSUSE kernel developers are focusing their efforts there. Reports against openSUSE 11.4 and prior will not get the attention needed to resolve them before openSUSE 12.2 is release and openSUSE 11.4 becomes unmaintained. Please re-test with openSUSE 12.1 or openSUSE RC2+ and re-open with an updated Product if you still encounter your issue. We apologize for this issue not getting the attention it deserves but we are focusing our resources in the area where they will have the most impact for our users. We're working hard to make openSUSE 12.2 the best openSUSE release yet! -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.

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[Bug 680085] New: Screen blanks while working, EDID checksum error in log

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