[Bug 853350] New: Grub2 screen resolution setting by YaST2 does not set console screen resolution
https://bugzilla.novell.com/show_bug.cgi?id=853350 https://bugzilla.novell.com/show_bug.cgi?id=853350#c0 Summary: Grub2 screen resolution setting by YaST2 does not set console screen resolution Classification: openSUSE Product: openSUSE 13.1 Version: Final Platform: x86 OS/Version: openSUSE 13.1 Status: NEW Severity: Normal Priority: P5 - None Component: YaST2 AssignedTo: yast2-maintainers@suse.de ReportedBy: fpmse@bluewin.ch QAContact: jsrain@suse.com Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux i686; rv:25.0) Gecko/20100101 Firefox/25.0 Connected monitor has a maximal resolution of 1024x768. 'Yast2'-'Boot Loader' (grub 2),'Boot Loader Options', activated 'Use graphical console', in 'Console resolution' select '1024x786'. 'Optional Kernel Command Line Parameter'="splash=verbose". Save configuration, restart computer. Resolution starts with 1024x786, after some seconds the console resolution switches to more than 1024x768, the monitor shows 'CANNOT DISPLAY THIS VIDEO MODE'. After booting it switches back to 1024x768, login in X11 session is possible. Switching to a console by Ctrl+Alt+F1 for example again shows 'CANNOT DISPLAY THIS VIDEO MODE'. CPU: AMD Athlon XP 3000+ Video card: AMD/ATI Radeon 9200 SE Reproducible: Always -- 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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Vladimir Moravec
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Martin Schreiber
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Vladimir Moravec
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--- Comment #3 from Vladimir Moravec
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Steffen Winterfeldt
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--- Comment #5 from Martin Schreiber
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Martin Schreiber
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Steffen Winterfeldt
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--- Comment #7 from Martin Schreiber
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--- Comment #8 from Martin Schreiber
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Takashi Iwai
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--- Comment #10 from Martin Schreiber
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--- Comment #11 from Takashi Iwai
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--- Comment #12 from Martin Schreiber
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--- Comment #13 from Takashi Iwai
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Takashi Iwai
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Josef Reidinger
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Steffen Winterfeldt
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Takashi Iwai
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Steffen Winterfeldt
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Takashi Iwai
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--- Comment #19 from Martin Schreiber
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--- Comment #20 from Martin Schreiber
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--- Comment #21 from Takashi Iwai
Please remember that "video=VGA-1:1024x768" does not work in the test case, "video=VGA-1:1024x768 drm_kms_helper.edid_firmware=edid/1024x768.bin" is necessary. I attached another monitor which can display the KMS selected resolution. Same result, "video=VGA-1:1024x768" does not switch the console resolution.
It's because your monitor gives the bogus EDID :) It's rather a hardware problem specific to your monitor, and the EDID override is merely a workaround. So, it's not required normally. -- 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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--- Comment #22 from Steffen Winterfeldt
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--- Comment #23 from Martin Schreiber
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--- Comment #24 from Takashi Iwai
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--- Comment #25 from Steffen Winterfeldt
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--- Comment #26 from Takashi Iwai
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--- Comment #27 from Martin Schreiber
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--- Comment #28 from Takashi Iwai
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--- Comment #29 from Martin Schreiber
The video option doesn't restrict the modes. It just sets the default mode to be set initially. So the answer of "Should "video=VGA-1:1024x768" switch console resolution to 1024x768?" is: "Yes, providing "video=VGA-1:1024x768" as kernel parameter should switch console resolution to 1024x768, it does work for me."?
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--- Comment #30 from Takashi Iwai
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--- Comment #31 from Martin Schreiber
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--- Comment #32 from Takashi Iwai
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--- Comment #33 from Martin Schreiber
You should check what outputs are really available on your system at the boot *without* any video and EDID override options. Check /sys/class/drm/card0-*/modes.
Boot with LCD-monitor connected: /sys/class/drm/card0/card0-VGA-1/modes: " 1024x768i 1024x768 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 800x600 640x480 640x480 640x480 640x480 640x480 720x400 " /sys/class/drm/card0/card0-DVI-D-1/modes: " " /sys/class/drm/card0/card0-SVIDEO-1/modes: " " Boot with CRT-monitor connected: /sys/class/drm/card0/card0-VGA-1/modes: " 1280x1024 1024x768 1024x768 1024x768 832x624 800x600 800x600 800x600 640x480 640x480 640x480 720x400 " /sys/class/drm/card0/card0-DVI-D-1/modes: " " /sys/class/drm/card0/card0-SVIDEO-1/modes: " " -- 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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--- Comment #34 from Steffen Winterfeldt
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Takashi Iwai
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Martin Schreiber
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Takashi Iwai
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--- Comment #38 from Martin Schreiber
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--- Comment #39 from Martin Schreiber
Now, plug the LCD monitor and boot with video=1024x768 option only. This results in "CANNOT DISPLAY THIS VIDEO MODE", right?
Correct.
If so, boot with drm.debug=0x0e option together with video=1024x768 option, and attach the whole kernel log.
See uploaded messages.gz. -- 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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--- Comment #40 from Takashi Iwai
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--- Comment #41 from Martin Schreiber
If so, login from another machine (or via typing blindly) to get the kernel boot message at this moment (the output of "dmesg" command), and attach the output to bugzilla (don't paste).
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--- Comment #42 from Martin Schreiber
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--- Comment #43 from Martin Schreiber
The driver seems trying to connect with 1024x768i.
And why shows the CRT-Monitor an image with resolution > 1024x768 in this state and no 1024x768i? And why does booting with the CRT-monitor and "video=VGA-1:1024x768" not show a 1024x768 image but something higher (possibly 1280x1024)? -- 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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--- Comment #44 from Takashi Iwai
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--- Comment #45 from Takashi Iwai
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Martin Schreiber
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--- Comment #47 from Martin Schreiber
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--- Comment #48 from Takashi Iwai
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--- Comment #49 from Martin Schreiber
It means that the VGA hotplug isn't detected properly
Yup, I thought the same. ;-)
thus the interlace mode is kept for CRT, which may result in strange size.
The CRT shows a clear image with more text rows than in 1024x768 mode. I would not expect this in a interlaced 1024x768 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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Takashi Iwai
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Martin Schreiber
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--- Comment #52 from Martin Schreiber
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Takashi Iwai
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Martin Schreiber
1. LCD monitor doesn't work as it advertises with the interlace mode
Or the video card does not produce a correct interlaced signal. Has this ever been tested? I suggest that KMS should not pick up an interlaced mode if there are non-interlaced modes of the wanted resolution and if not explicitly requested to use interlaced. With "video=VGA-1:1024x768 drm_kms_helper.edid_firmware=edid/1024x768.bin" the LCD-monitor shows a 1024x768 console. -- 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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Takashi Iwai
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Martin Schreiber
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Takashi Iwai
If you can still see the issue with edid override and the manual mode reconfiguring, get the log again with drm.debug=0x0e from the beginning of the procedure.
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--- Comment #58 from Takashi Iwai
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Martin Schreiber
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Takashi Iwai
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Martin Schreiber
OK, regarding about video option (about the original bug issue), the problem is only about switching between CRT and LCD?
For me switching between CRT and LCD is no problem because I usually do not replace the monitor in a running system. The problem is that there is no simple possibility to force KMS to use the not interlaced mode, especially while booting with the OpenSUSE 13.1 install DVD. Anyway, googling the problem most likely will show the "drm_kms_helper.edid_firmware=edid/1024x768.bin" trick to other users now. ;-)
The EDID thing is very like WONTFIX for openSUSE 13.1. This is the designed behavior although it's suboptimal. We can improve the behavior but it's for the future upstream kernel.
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Takashi Iwai
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--- Comment #63 from Takashi Iwai
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Takashi Iwai
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--- Comment #65 from Takashi Iwai
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Felix Miata
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