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drm/amd/display: Fix black screen with HDMI outputs

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[Why & How]
This fixes the black screen issue on certain APUs with HDMI,
accompanied by the following messages:

amdgpu 0000:c4:00.0: amdgpu: [drm] Failed to setup vendor info
                     frame on connector DP-1: -22
amdgpu 0000:c4:00.0: [drm] Cannot find any crtc or sizes [drm]
                     Cannot find any crtc or sizes

Fixes: 489f0f600c ("drm/amd/display: Fix DVI-D/HDMI adapters")
Suggested-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 678c901443)
This commit is contained in:
Alex Hung
2025-10-22 16:19:34 -06:00
committed by Alex Deucher
parent 3362692fea
commit fdc93beead
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/amd/display/dc/link/link_detection.c
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@@ -1141,6 +1141,7 @@ static bool detect_link_and_local_sink(struct dc_link *link,
!sink->edid_caps.edid_hdmi)
sink->sink_signal = SIGNAL_TYPE_DVI_SINGLE_LINK;
else if (dc_is_dvi_signal(sink->sink_signal) &&
dc_is_dvi_signal(link->connector_signal) &&
aud_support->hdmi_audio_native &&
sink->edid_caps.edid_hdmi)
sink->sink_signal = SIGNAL_TYPE_HDMI_TYPE_A;