[Bug 213779] New: Screen stays blank on resume. from hibernate
bugzilla-daemon at bugzilla.kernel.org
bugzilla-daemon at bugzilla.kernel.org
Sun Jul 18 23:18:34 UTC 2021
https://bugzilla.kernel.org/show_bug.cgi?id=213779
Bug ID: 213779
Summary: Screen stays blank on resume. from hibernate
Product: Drivers
Version: 2.5
Kernel Version: 5.13
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: Video(DRI - non Intel)
Assignee: drivers_video-dri at kernel-bugs.osdl.org
Reporter: alex14641 at yahoo.com
Regression: No
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 at amd.com>
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 <stylon.wang at amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland at amd.com>
Acked-by: Anson Jacob <Anson.Jacob at amd.com>
Tested-by: Dan Wheeler <daniel.wheeler at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
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