[Bug 215511] Dual monitor with amd 5700 causes system to hang at startup.
bugzilla-daemon at kernel.org
bugzilla-daemon at kernel.org
Thu Feb 3 00:10:49 UTC 2022
https://bugzilla.kernel.org/show_bug.cgi?id=215511
--- Comment #4 from Jose Mestre (pmestre at gmail.com) ---
0f591d17e36e08313b0c440b99b0e57b47e01a9a is the first bad commit
commit 0f591d17e36e08313b0c440b99b0e57b47e01a9a
Author: Angus Wang <angus.wang at amd.com>
Date: Thu Dec 9 17:27:01 2021 -0500
drm/amd/display: Changed pipe split policy to allow for multi-display pipe
split
commit ee2698cf79cc759a397c61086c758d4cc85938bf upstream.
[WHY]
Current implementation of pipe split policy prevents pipe split with
multiple displays connected, which caused the MCLK speed to be stuck at
max
[HOW]
Changed the pipe split policies so that pipe split is allowed for
multi-display configurations
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1522
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1709
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1655
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1403
Note this is a backport of this commit from amdgpu drm-next for 5.16.
Tested-by: Daniel Wheeler <daniel.wheeler at amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr at amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
Signed-off-by: Angus Wang <angus.wang at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
Cc: stable at vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 +-
drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c | 2 +-
drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c | 2 +-
drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c | 2 +-
drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c | 2 +-
drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c | 2 +-
drivers/gpu/drm/amd/display/dc/dcn31/dcn31_resource.c | 2 +-
7 files changed, 7 insertions(+), 7 deletions(-)
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