Already APPLIED/Cmnt: [PATCH 0/1][SRU][M] black screen when wake up from s3 with AMD W7600 gfx

[Stefan Bader]

On 26.01.24 11:22, AceLan Kao wrote:
> From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>
> 
> BugLink: https://bugs.launchpad.net/bugs/2051341
> 
> [Impact]
> The display is blank when resumed from s3 with AMD W7600 DGFx and Dell E2422H monitor
> 
> [Fix]
> Mario points out the commit in 6.7 may help
> 3b401e30c249 drm/ttm: Reorder sys manager cleanup step
> 
> [Test]
> 1. Build W7600 dGFx + Monitor: E2422H Config and FIDA Ubunutu22.04 OS.
> 2. Boot OS, put SUT to suspend.
> 3. Wake up the System from suspend.
> 4. Right away reboot the system from Ubuntu OS.
> 5. Put SUT to suspend and wake up the system.
> 6. After wake up Suspend, SUT should not be black screen.
> 7. Repetition Step 2~6 30 cycles
> 
> [Where problems could occur]
> Handling the system memory manager after the workqueue is destroyed prevents
> from the pointer beeing used after free. Should be pretty safe to include it.
> 
> Karolina Stolarek (1):
>    drm/ttm: Reorder sys manager cleanup step
> 
>   drivers/gpu/drm/ttm/ttm_device.c | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)
> 

This fix was already pending on Mantic via upstream stable 6.5.11. I 
only adjusted the commit message to include the additional bug reference.

-- 
- Stefan

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