Hi Alex, hi all In Debian we got a regression report from Dominique Dumont, CC'ed in https://bugs.debian.org/1005005 that afer an update to 5.15.15 based kernel, his machine noe longer suspends correctly, after screen going black as usual it comes back. The Debian bug above contians a trace. Dominique confirmed that this issue persisted after updating to 5.16.7 furthermore he bisected the issue and found 3c196f05666610912645c7c5d9107706003f67c3 is the first bad commit commit 3c196f05666610912645c7c5d9107706003f67c3 Author: Alex Deucher <alexander.deucher@xxxxxxx> Date: Fri Nov 12 11:25:30 2021 -0500 drm/amdgpu: always reset the asic in suspend (v2) [ Upstream commit daf8de0874ab5b74b38a38726fdd3d07ef98a7ee ] If the platform suspend happens to fail and the power rail is not turned off, the GPU will be in an unknown state on resume, so reset the asic so that it will be in a known good state on resume even if the platform suspend failed. v2: handle s0ix Acked-by: Luben Tuikov <luben.tuikov@xxxxxxx> Acked-by: Evan Quan <evan.quan@xxxxxxx> Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) to be the first bad commit, see https://bugs.debian.org/1005005#34 . Does this ring any bell? Any idea on the problem? Regards, Salvatore
