bugGNU GRUB - Bugs: bug #42051, Grub2-EFI needs to enable GOP to...

 
 

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bug #42051: Grub2-EFI needs to enable GOP to boot on Toshiba w/7670m

Submitted by:  Nicolas <snakehaveyou>
Submitted on:  Fri 04 Apr 2014 05:08:28 PM UTC  
 
Category: BootingSeverity: Major
Priority: 5 - NormalItem Group: Action Request
Status: NonePrivacy: Public
Assigned to: NoneOriginator Name: SnakeHaveYou
Open/Closed: OpenRelease: 
Release: 2.00Reproducibility: Every Time
Planned Release: None

Fri 04 Apr 2014 05:08:28 PM UTC, original submission:

Here's the problem:

When you try to boot OpenSUSE 13.1/Fedora 20(non tested with other distros) in UEFI mode, the UI and terminal screen will be shifted and corrupted with artifacts, or flashing.

Here are some pics of the shifted screen:

http://s1203.photobucket.com/user/SnakeHaveYou/media/20140322_010242_Night.jpg.html

http://s1203.photobucket.com/user/SnakeHaveYou/media/20140322_010401_Night.jpg.html

And here's a video of the flashing screen (only with Kernel 3.14):

https://www.youtube.com/watch?v=ogcsVK-6q6c

How to reproduce?:

Configuration 1:

- Kernel: 3.14
- Video driver: Open Source Radeon driver
- Bootloader: Grub2-EFI
- Issue: Flashing screen (even on console). Vertical lines. No mouse.
- Workaround: None

Configuration 2:

- Kernel: 3.11 to 3.13
- Video driver: Proprietary Catalyst. Latest beta
- Bootloader: Grub2-EFI
- Issue: Shifted screen. Vertical lines. Mouse on screen (pointer with artifacts)
- Workaround: Suspend and wake up system fix the issue. Will appear again after a restart.

When i can't reproduce it?:

Configuration 3:

- Kernel: 3.11 to 3.13
- Video driver: Open Source Radeon
- Bootloader: Grub2-EFI
- Issue: None

Configuration 4:

- Kernel: 3.11 to 3.13
- Video driver: Proprietary and Open Source
- Bootloader: rEFInd ONLY with GOP enabled
- Issue: None

Configuration 5:

- Kernel: 3.14
- Video driver: Open Source Radeon
- Bootloader: rEFInd ONLY with GOP enabled
- Issue: None

Configuration 6:

- With a non-EFI installation, i can;t reproduce the issue

My workaround is:

Install rEFInd and enable GOP mode in refind.conf. This is the only way i found to fix the issue..

Seems to be that there are some incompatibilities between the 7670m and/or Toshiba laptops with Grub2-EFI video modes.

Nicolas <snakehaveyou>

 

No files currently attached

 

Depends on the following items: None found

Items that depend on this one: None found

 

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