https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c1 --- Comment #1 from Graham Davis 2013-02-13 11:54:10 UTC --- Made a delayed update to 12.2 on the machine and the graphics on that rendered it unusable. All I got on that was a narrow green band at the top of the screen. The changes included a kernel update so I assumed that was to blame. I then made a fresh install of 12.2 - with no updates - and got the same problem as with 12.3. Displacement trouble started with mid-install reboot. So it now looks as though this has nothing to do with 12.3 but I'm guessing it may be somehow connected with the machine having UEFI. Not sure why 12.2 worked and why I had no trouble with earlier 12.3 installs. I'll be tinkering a bit more to see if I can make any sense of this. -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c3 --- Comment #3 from Graham Davis 2013-02-13 20:07:29 UTC --- I've attached an external drive to the machine and installed 12.3 RC1 on it using GRUB2-EFI instead of GRUB2. It gave me a warning that the hardware was incompatible but, as I'd done it before with 12.1, I felt safe in ignoring it. Installation was OK and I was able to boot not only the new installation but also 12.3 and 12.2 on the internal drive with no sign of the graphical problems that occurred when booting with GRUB2. Unfortunately(?), there was no sign of Windows 7 on the menu. I tried a GRUB2-EFI installation on the internal drive alone but could not get it to work. It seemed to install OK but produced an error on boot. So, this problem seems to be associated with GRUB2 but not GRUB2-EFI nor the actual installed OSes. Intriguing! -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c5 --- Comment #5 from Graham Davis 2013-02-14 09:28:40 UTC --- (In reply to comment #4)

(In reply to comment #3)

...

I've attached an external drive to the machine and installed 12.3 RC1 on it using GRUB2-EFI instead of GRUB2. Unfortunately(?), there was no sign of Windows 7 on the menu.

Was Windows 7 installed in BIOS or EFI mode?

Knowing next to nothing about EFI, I had a Google around and found that I should see an EFI FAT partition if W7 had been installed in EFI mode. As I don't have that partition, I assume W7 was installed in BIOS and that would explain why GRUB2-EFI didn't see it?

...

So, this problem seems to be associated with GRUB2 but not GRUB2-EFI nor the actual installed OSes. Intriguing!

BIOS and EFI use totally different firmware drivers so it is quite possible that they initialize adapter differently.

OK, that would explain why GRUB2 was always affected but I'm still puzzled as to why newly-installed or updated systems should now be displayed incorrectly as well. -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c7 Malvern Star changed: What |Removed |Added ---------------------------------------------------------------------------- Component|Kernel |Bootloader AssignedTo|kernel-maintainers@forge.pr |jsrain@suse.com |ovo.novell.com | QAContact|qa-bugs@suse.de |jsrain@suse.com --- Comment #7 from Malvern Star 2013-02-14 15:01:56 UTC --- Accordingly, I've moved this bug to "Bootloader". Hopefully the team responsible respond to this because it's a serious issue if your assessment is correct. -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c8 --- Comment #8 from Graham Davis 2013-02-28 20:49:37 UTC --- Just installed RC2 with GRUB2. During the mid-install reboot, the screen was split about 20-80 when the GRUB2 screen appeared until the installation recommenced, when it shifted again to a 40-60 split. This stayed the same through the rest of the process and after the final boot. I then logged in and entered Yast and changed the boot system from GRUB2 to GRUB. I rebooted and the graphics returned to normal, properly centred. -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c Andrey Borzenkov changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |hacker@scarlet-jade.com -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c11 Andrey Borzenkov changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |NEEDINFO InfoProvider| |hacker@scarlet-jade.com --- Comment #11 from Andrey Borzenkov 2013-03-02 10:45:17 UTC --- (In reply to comment #10)

GRUB2 screen is NOT OK. It is shifted 20% to the right.

Could you try going in command line in grub2 (press 'c'). Then set pager=1 videoinfo it should list all video modes grub2 believes your adapter supports. Current video mode is marked with '*'. You could test other video modes using videotest WxHxD where WxHxD is width, height, depth as shown by videoinfo. My guess is that grub2 autoselects video mode that adapter does not support well (at least in combination with your terminal). Note, it may lock you computer (doing this in qemu reliably requires hard kill). -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c13 --- Comment #13 from Andrey Borzenkov 2013-03-05 13:57:12 UTC --- I would rather try 16 or 24 bit depth. 32 is problematic. I still think that the primary difference is video mode used by grub2 vs. grub legacy, but I do not know how to check which mode is used by grub legacy. It has vbeprobe but I never used it. Could you approximately guess which mode is selected by grub legacy (at least, dimensions if not color depth)? -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c15 --- Comment #15 from Andrey Borzenkov 2013-03-16 07:33:29 UTC --- Could you provide full output of videoinfo under grub2? As series of photos, if nothing better is possible. -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c17 --- Comment #17 from Graham Davis 2013-08-18 06:33:10 UTC --- (In reply to comment #16)

Graham,

Are you happy to test again under 13.1 M4? It would be helpful to know if this problem persists.

No, it's working fine. I made a new install from DVD - not an update - and the display was fine. Apologies for not reporting earlier that 13.1 was OK. -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c19 --- Comment #19 from Graham Davis 2013-08-27 10:16:35 UTC --- (In reply to comment #18)

No worries. But it's still an issue in 12.3 doing a clean install right?

Yes, I've checked by making a new install from the DVD and it's still occurring. I saw on an openSUSE newsgroup that someone was having similar problems with Radeon graphics on a laptop and so pointed them to this report. -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c21 Graham Davis changed: What |Removed |Added ---------------------------------------------------------------------------- Component|Bootloader |Bootloader Version|Final |13.1 Milestone 0 AssignedTo|mchang@suse.com |jsrain@suse.com Product|openSUSE 12.3 |openSUSE Factory --- Comment #21 from Graham Davis 2014-03-24 15:36:08 UTC --- Oh darn it! 13.1 was OK but someone seems to have decided to keep us all on our toes by reintroducing this bug in 13.2-M0. I haven't tried any of the fudges suggested last year but I assume that if someone were to re-apply the fix that worked in 13.1, that should do the trick in 13.2 - or will it? -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c22 Malvern Star changed: What |Removed |Added ---------------------------------------------------------------------------- Version|13.1 Milestone 0 |13.2 Milestone 0 --- Comment #22 from Malvern Star 2014-04-11 13:56:27 UTC --- Darn it! OK, I've updated the version by the way. You had it set to 13.1 instead of 13.2. -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c24 --- Comment #24 from Graham Davis 2014-06-27 11:09:35 UTC --- Not sure whether you're interested in these updates but just checked openSUSE-Factory-DVD-x86_64-Snapshot20140624-Media.iso and situation is unchanged. -- 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.

https://bugzilla.novell.com/show_bug.cgi?id=803026 https://bugzilla.novell.com/show_bug.cgi?id=803026#c26 --- Comment #26 from Graham Davis 2014-09-12 18:35:57 UTC --- 20140909 still has the fault. -- 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.