This is a note to let you know that I've just added the patch titled drm/amd/display: Update scaling settings on modeset to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-amd-display-update-scaling-settings-on-modeset.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 3fecd5bd6d84dae5baa5787a5abfa1d9b56e4633 Author: Roman Li <roman.li@xxxxxxx> Date: Fri May 21 10:20:25 2021 -0400 drm/amd/display: Update scaling settings on modeset [ Upstream commit c521fc316d12fb9ea7b7680e301d673bceda922e ] [Why] We update scaling settings when scaling mode has been changed. However when changing mode from native resolution the scaling mode previously set gets ignored. [How] Perform scaling settings update on modeset. Signed-off-by: Roman Li <roman.li@xxxxxxx> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@xxxxxxx> Acked-by: Stylon Wang <stylon.wang@xxxxxxx> Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index df26c07cb912..b413a7a2e92f 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -8291,7 +8291,8 @@ skip_modeset: BUG_ON(dm_new_crtc_state->stream == NULL); /* Scaling or underscan settings */ - if (is_scaling_state_different(dm_old_conn_state, dm_new_conn_state)) + if (is_scaling_state_different(dm_old_conn_state, dm_new_conn_state) || + drm_atomic_crtc_needs_modeset(new_crtc_state)) update_stream_scaling_settings( &new_crtc_state->mode, dm_new_conn_state, dm_new_crtc_state->stream);