Bug 213779 - Screen stays blank on resume from hibernate
Summary: Screen stays blank on resume from hibernate
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Video(DRI - non Intel) (show other bugs)
Hardware: x86-64 Linux
: P1 high
Assignee: drivers_video-dri
Depends on:
Reported: 2021-07-18 23:18 UTC by alex14641
Modified: 2021-07-28 04:49 UTC (History)
1 user (show)

See Also:
Kernel Version: 5.13
Regression: Yes
Bisected commit-id:


Description alex14641 2021-07-18 23:18:34 UTC
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 <stylon.wang@amd.com>
Date:   Tue Mar 2 19:25:56 2021 +0800

    drm/amd/display: Guard ASSR with internal display flag
    ASSR enabling only considers capability declared in DPCD.
    We also need to check whether the connector is internal.
    ASSR enabling need to check both DPCD capability and internal display
    Signed-off-by: Stylon Wang <stylon.wang@amd.com>
    Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
    Acked-by: Anson Jacob <Anson.Jacob@amd.com>
    Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Comment 1 alex14641 2021-07-18 23:20:03 UTC
The graphics card is a RX580.
Comment 2 Alex Deucher 2021-07-19 14:53:43 UTC
Can you try the patch here:
Comment 3 alex14641 2021-07-20 12:27:31 UTC
That patch works.
Comment 4 Alex Deucher 2021-07-28 04:49:50 UTC
Fix is in 5.14 and should land in stable shortly:

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