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| author | Thomas Anderson <[email protected]> | 2019-12-02 21:47:13 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2020-01-07 16:29:47 +0000 |
| commit | 840c90fce6c78bc6b2c4cb9e836d70985ed32066 (patch) | |
| tree | 4a7c52373fd27963753998760d983451d9b2dce3 /lib/xarray.c | |
| parent | Revert "drm/amdgpu: Set no-retry as default." (diff) | |
| download | kernel-840c90fce6c78bc6b2c4cb9e836d70985ed32066.tar.gz kernel-840c90fce6c78bc6b2c4cb9e836d70985ed32066.zip | |
drm/amd/display: Reduce HDMI pixel encoding if max clock is exceeded
For high-res (8K) or HFR (4K120) displays, using uncompressed pixel
formats like YCbCr444 would exceed the bandwidth of HDMI 2.0, so the
"interesting" modes would be disabled, leaving only low-res or low
framerate modes.
This change lowers the pixel encoding to 4:2:2 or 4:2:0 if the max TMDS
clock is exceeded. Verified that 8K30 and 4K120 are now available and
working with a Samsung Q900R over an HDMI 2.0b link from a Radeon 5700.
Reviewed-by: Harry Wentland <[email protected]>
Signed-off-by: Thomas Anderson <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'lib/xarray.c')
0 files changed, 0 insertions, 0 deletions