http://bugzilla.opensuse.org/show_bug.cgi?id=1177384 http://bugzilla.opensuse.org/show_bug.cgi?id=1177384#c1 Takashi Iwai changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |grewin.mathias@online.de, | |tiwai@suse.com Flags| |needinfo?(grewin.mathias@on | |line.de) --- Comment #1 from Takashi Iwai --- Could you give the dmesg output from both working and non-working boots? Also, please upload the hwinfo output, too. -- You are receiving this mail because: You are the assignee for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1177384 http://bugzilla.opensuse.org/show_bug.cgi?id=1177384#c3 --- Comment #3 from Takashi Iwai --- (In reply to Mathias Grewin from comment #2)

It's only possible to get into the running system with the elder kernel and the information you want is too much expensive for this forum - so I can't send them here (I tried!).

Can you login via ssh from another machine? Also, it's not clear how "expensive"; if you think about the size, you can compress the dmesg output beforehand, of course. -- You are receiving this mail because: You are the assignee for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1177384 http://bugzilla.opensuse.org/show_bug.cgi?id=1177384#c5 Felix Miata (offline until ???) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mrmazda@earthlink.net --- Comment #5 from Felix Miata (offline until ???) --- Created attachment 842338 --> http://bugzilla.opensuse.org/attachment.cgi?id=842338&action=edit DVI failing journalctl -b and dmesg with chip ID: 1002:6779 Forum thread: https://forums.opensuse.org/showthread.php/545527-Screen-is-black-after-upda... Same thing with my AMD Caicos [Radeon HD 6450/7450/8450 / R5 230 OEM] vendor: Dell driver: radeon v: kernel chip ID: 1002:6779. DisplayPort works as expected, DVI port does not. -- You are receiving this mail because: You are the assignee for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1177384 http://bugzilla.opensuse.org/show_bug.cgi?id=1177384#c7 Takashi Iwai changed: What |Removed |Added ---------------------------------------------------------------------------- Flags| |needinfo? --- Comment #7 from Takashi Iwai --- Thanks. Unfortunately there seems no obvious errors relevant with that through a quick glance. To check whether it's a regression in radeon kernel module or not, could you try the following as root? % mkdir /lib/modules/5.3.18-lp152.44-default/extra % cp /lib/modules/5.3.18-lp152.36-default/kernel/drivers/gpu/drm/radeon/radeon.ko /lib/modules/5.3.18-lp152.44-default/extra/ % depmod 5.3.18-lp152.44-default % mkinitrd Basically this copies the old radeon module onto the new kernel. Then reboot and retest with *.44 kernel. If this works, it's a regression in radeon driver. If this doesn't fix, it's something else (likely in drm core modules). You can do similar tests by copying drivers/gpu/drm*.ko files, too. -- You are receiving this mail because: You are the assignee for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1177384 http://bugzilla.opensuse.org/show_bug.cgi?id=1177384#c9 --- Comment #9 from Mathias Grewin --- Now the new kernel 5.3.18-lp152.44-default is running, but only it does when I set "nomodeset" as a new Kernel Parameter! The resolution is only 1400 * 1050 by 77 Hz and there is no other setting possible. So I think, the kernel delivers wrong settings (without nomodeset). -- You are receiving this mail because: You are the assignee for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1177384 http://bugzilla.opensuse.org/show_bug.cgi?id=1177384#c11 Felix Miata (offline until ???) changed: What |Removed |Added ---------------------------------------------------------------------------- Flags|needinfo? | --- Comment #11 from Felix Miata (offline until ???) --- (In reply to Takashi Iwai from comment #7)

% mkdir /lib/modules/5.3.18-lp152.44-default/extra % cp /lib/modules/5.3.18-lp152.36-default/kernel/drivers/gpu/drm/radeon/radeon.ko /lib/modules/5.3.18-lp152.44-default/extra/ % depmod 5.3.18-lp152.44-default % mkinitrd

I erred in following the steps. I copied 5.3.18-lp152.41-default/kernel/drivers/gpu/drm/radeon/radeon.ko as .radeon.ko41 in the .44 /kernel/drivers/gpu/drm/radeon/ directory and 5.3.18-lp152.36-default/kernel/drivers/gpu/drm/radeon/radeon.ko and as .radeon.ko36 after renaming .44's radeon.ko .radeon.ko44. I then proceeded without the next steps (the /extra/ directory and running % depmod and % mkinitrd) to shutdown, swap DVI cable from DP cable, booted .44, and all seems to be working completely normally. I did note that radeon.ko for all of .36, .41 and .44 have the same byte count, 2,894,595. I see that .33's is 2894691. Then I copied .33's radeon.ko to 5.3.18-lp152.44-default/extra, but '% depmod 5.3.18-lp152.44-default' reported bash: fg: %: no such job My kernel last installed on this host before .44 is .20, so I suppose the regression may be from .36. So I'm paused to comment here. -- You are receiving this mail because: You are the assignee for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1177384 http://bugzilla.opensuse.org/show_bug.cgi?id=1177384#c13 --- Comment #13 from Takashi Iwai --- (In reply to Felix Miata (offline until ???) from comment #12)

I undid what I reported copied in comment 11, then followed the steps in comment 7 more precisely. The deviations:

1- didn't use % anywhere

2- used radeon.ko from kernel .33 rather than from .36

Problem with .44 is gone with the result.

OK, thanks, this information helps a lot. -- You are receiving this mail because: You are the assignee for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1177384 http://bugzilla.opensuse.org/show_bug.cgi?id=1177384#c15 --- Comment #15 from Takashi Iwai --- Oh, and the test kernel above is based on the latest Leap 15.2 KOTD. Please test the kernel below beforehand, and confirm that the problem persists. http://download.opensuse.org/repositories/Kernel:/openSUSE-15.2/standard/ If KOTD is broken and my test kernel works, it means that the revert is the fix. -- You are receiving this mail because: You are the assignee for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1177384 http://bugzilla.opensuse.org/show_bug.cgi?id=1177384#c17 Peter Kirchgeßner changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |peter@kirchgessner.net --- Comment #17 from Peter Kirchgeßner --- Just a question about the kernel versions and radeon versions. Like the OP, I have kernel .44 and .41 on my system. Because of that problem with the kernel .44, I opened the related thread in the openSUSE forum. As fallback I used kernel .41, which works fine. I can see that the radeon.ko have the same size for kernels .44 and .41, but a different content. When I follow the instructions of mkdir/cp/depmod/mkinitrd with radeon.ko from kernel .41, the kernel .44 works too. So I would expect that there are some modifications to radeon from kernel .41 to .44, that are responsible for that problem. -- You are receiving this mail because: You are the assignee for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1177384 http://bugzilla.opensuse.org/show_bug.cgi?id=1177384#c19 --- Comment #19 from Takashi Iwai --- Ah, good to know that the last working version is *.41. Then there is a known patch that can be the culprit, the commit fc8c70526bd30733ea8667adb8b8ffebea30a8ed I'm building yet another kernel in OBS home:tiwai:bsc1177384-radeon repo. A new test package will appear later at http://download.opensuse.org/repositories/home:/tiwai:/bsc1177384-radeon/sta... Please give it a try later. -- You are receiving this mail because: You are the assignee for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1177384 http://bugzilla.opensuse.org/show_bug.cgi?id=1177384#c20 --- Comment #20 from Peter Kirchgeßner --- kernel-default-5.3.18-lp152.1.1.g9749897.x86_64.rpm works. I get 1920x1200 on DVI-port. -- You are receiving this mail because: You are the assignee for the bug.

http://bugzilla.opensuse.org/show_bug.cgi?id=1177384 http://bugzilla.opensuse.org/show_bug.cgi?id=1177384#c22 --- Comment #22 from Mathias Grewin --- (In reply to Takashi Iwai from comment #21)

OK, thanks for confirmation. The fix was queued now.

Yes it's fine - thank you so much and to all users which are involved in this problem and also helped with their comments! -- You are receiving this mail because: You are the assignee for the bug.