Here's at least part of the problem.
commit 15c983d0cbb5a158eafb9cb88e6d8dfc4477d9c2
Author: Melissa Wen <[email protected]>
Date: Fri Dec 29 15:25:00 2023 -0100
drm/amd/display: fix bandwidth validation failure on DCN 2.1
BugLink: https://bugs.launchpad.net/bugs/2059068
commit 3a0fa3bc245ef92838a8296e0055569b8dff94c4 upstream.
IGT `amdgpu/amd_color/crtc-lut-accuracy` fails right at the beginning of
the test execution, during atomic check, because DC rejects the
bandwidth state for a fb sizing 64x64. The test was previously working
with the deprecated dc_commit_state(). Now using
dc_validate_with_context() approach, the atomic check needs to perform a
full state validation. Therefore, set fast_validation to false in the
dc_validate_global_state call for atomic check.
Cc: [email protected]
Fixes: b8272241ff9d ("drm/amd/display: Drop dc_commit_state in favor of
dc_commit_streams")
Signed-off-by: Melissa Wen <[email protected]>
Signed-off-by: Hamza Mahfooz <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Portia Stephens <[email protected]>
Signed-off-by: Stefan Bader <[email protected]>
That commit was reverted upstream.
https://github.com/torvalds/linux/commit/c2ab9ce0ee7225fc05f58a6671c43b8a3684f530
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https://bugs.launchpad.net/bugs/2070096
Title:
[amdgpu] Graphics driver issue: Display goes black for a second at
random: [drm:link_enc_cfg_validate [amdgpu]] *ERROR*
link_enc_cfg_validate: Invalid link encoder assignments - 0x1c
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