diff options
| author | Tom Chung <chiahsuan.chung@amd.com> | 2024-10-09 17:09:38 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-11-04 12:43:03 -0500 |
| commit | 4f26c95ffc21a91281429ed60180619bae19ae92 (patch) | |
| tree | 0f2a0e81f7a83f96b3457a4baba9614df903c7ec /drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c | |
| parent | 59b723cd2adbac2a34fc8e12c74ae26ae45bf230 (diff) | |
drm/amd/display: Fix brightness level not retained over reboot
[Why]
During boot up and resume the DC layer will reset the panel
brightness to fix a flicker issue.
It will cause the dm->actual_brightness is not the current panel
brightness level. (the dm->brightness is the correct panel level)
[How]
Set the backlight level after do the set mode.
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Fixes: d9e865826c20 ("drm/amd/display: Simplify brightness initialization")
Reported-by: Mark Herbert <mark.herbert42@gmail.com>
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3655
Reviewed-by: Sun peng Li <sunpeng.li@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 7875afafba84817b791be6d2282b836695146060)
Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c')
0 files changed, 0 insertions, 0 deletions