Public bug reported:
[Impact]
Sytesm may hang after s2idle on AMD A+A GPU config due to the following
commits:
8b328c64c7082278c888927f00e526786eec2880 ("drm/amdgpu: don't use BACO
for reset in S3") https://bugs.launchpad.net/bugs/1968475
a26d80ba0d9e67ea11cbfc25618320163497d3fe ("drm/amd/pm: keep the BACO
feature enabled for suspend") https://bugs.launchpad.net/bugs/1958371
[Fix]
Revert one commit and don't reset dGPU when s2idle
[Test]
Verified on AMD RMB, stress s2idle passed.
[Where problems could occur]
Low risk, it may break s2idle on AMD platform.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-oem-5.14 (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-oem-5.17 (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-oem-5.14 (Ubuntu Focal)
Importance: Undecided
Status: New
** Affects: linux (Ubuntu Jammy)
Importance: Undecided
Status: New
** Affects: linux-oem-5.17 (Ubuntu Jammy)
Importance: Undecided
Status: New
** Tags: amd oem-priority originate-from-1972903
** Tags added: amd oem-priority originate-from-1972903
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https://bugs.launchpad.net/bugs/1975804
Title:
[SRU][OEM-5.14/OEM-5.17/J][PATCH 0/2] Fix system hangs after s2idle on
AMD A+A GPU
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