** Changed in: linux-oem-6.0 (Ubuntu Jammy)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/2000110
Title:
Keeps rebooting with AMD W6400, W6600, and W6800 graphic cards
Status in HWE Next:
New
Status in linux package in Ubuntu:
In Progress
Status in linux-oem-5.17 package in Ubuntu:
Invalid
Status in linux-oem-6.0 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Won't Fix
Status in linux-oem-5.17 source package in Jammy:
Fix Committed
Status in linux-oem-6.0 source package in Jammy:
Fix Committed
Status in linux source package in Kinetic:
In Progress
Status in linux-oem-5.17 source package in Kinetic:
Invalid
Status in linux-oem-6.0 source package in Kinetic:
Invalid
Status in linux source package in Lunar:
In Progress
Status in linux-oem-5.17 source package in Lunar:
Invalid
Status in linux-oem-6.0 source package in Lunar:
Invalid
Bug description:
[Impact]
With AMD W6400, W6600, or W6800 graphic cards the system keeps rebooting
while entering graphics mode.
[Fix]
AMD provides a list of commits to fix this issue
1. drm/amdgpu: Remove ATC L2 access for MMHUB 2.1.x
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20221107&id=d2c4c1569a7d7d5c8f75963bf2d62d7aeac30e2a
2. drm/amdgpu: Don't enable LTR if not supported
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20221107&id=6c20490663553cd7e07d8de8af482012329ab9d6
3. Patch series: fix PCI AER issues
drm/amdgpu: make sure to init common IP before gmc
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20221107&id=a8671493d2074950553da3cf07d1be43185ef6c6
drm/amdgpu: move nbio sdma_doorbell_range() into sdma code for vega
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20221107&id=e3163bc8ffdfdb405e10530b140135b2ee487f89
drm/amdgpu: move nbio ih_doorbell_range() into ih code for vega
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=next-20221107&id=dc1d85cb790f2091eea074cee24a704b2d6c4a06
4. Disable amdgpu runpm, will have a update later.
https://patchwork.freedesktop.org/patch/507366/
[Test]
Verified on the machine with AMD graphic card, and confirmed the issue is
gone.
[Where problems could occur]
The main idea is to disable BACO on those cards, the fix is quite
straightforward with 2 Fixes commits, have impact on limited cards.
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