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On 2021-07-18T23:18:34+00:00 alex14641 wrote:

If I close my laptop lid and reopen it, the screen stays blank.
Reverting the following commit fixes the issue:

commit 9127daa0a8d88a6e6452eb8b7c9be4c3f42a867e
Author: Stylon Wang <[email protected]>
Date:   Tue Mar 2 19:25:56 2021 +0800

    drm/amd/display: Guard ASSR with internal display flag
    
    [Why]
    ASSR enabling only considers capability declared in DPCD.
    We also need to check whether the connector is internal.
    
    [How]
    ASSR enabling need to check both DPCD capability and internal display
    flag.
    
    Signed-off-by: Stylon Wang <[email protected]>
    Reviewed-by: Harry Wentland <[email protected]>
    Acked-by: Anson Jacob <[email protected]>
    Tested-by: Dan Wheeler <[email protected]>
    Signed-off-by: Alex Deucher <[email protected]>

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1947453/comments/0

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On 2021-07-18T23:20:03+00:00 alex14641 wrote:

The graphics card is a RX580.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1947453/comments/1

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On 2021-07-19T14:53:43+00:00 alexdeucher wrote:

Can you try the patch here:
https://gitlab.freedesktop.org/drm/amd/-/issues/1620

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1947453/comments/2

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On 2021-07-20T12:27:31+00:00 alex14641 wrote:

That patch works.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1947453/comments/3

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On 2021-07-28T04:49:50+00:00 alexdeucher wrote:

Fix is in 5.14 and should land in stable shortly:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6be50f5d83adc9541de3d5be26e968182b5ac150

Reply at:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1947453/comments/4


** Changed in: linux
       Status: Unknown => Confirmed

** Changed in: linux
   Importance: Unknown => High

** Bug watch added: gitlab.freedesktop.org/drm/amd/-/issues #1620
   https://gitlab.freedesktop.org/drm/amd/-/issues/1620

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https://bugs.launchpad.net/bugs/1947453

Title:
  [amdgpu] wayland black screen with white flashes, display corruption,
  kernel 5.13

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