** Changed in: linux (Ubuntu Mantic)
Status: In Progress => Fix Committed
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Packages, which is subscribed to linux-oem-6.5 in Ubuntu.
https://bugs.launchpad.net/bugs/2042912
Title:
System hang after unplug/plug DP monitor with AMD W7500 card
Status in HWE Next:
New
Status in linux package in Ubuntu:
In Progress
Status in linux-oem-6.1 package in Ubuntu:
Invalid
Status in linux-oem-6.5 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Invalid
Status in linux-oem-6.1 source package in Jammy:
Fix Committed
Status in linux-oem-6.5 source package in Jammy:
Fix Released
Status in linux source package in Mantic:
Fix Committed
Status in linux-oem-6.1 source package in Mantic:
Invalid
Status in linux-oem-6.5 source package in Mantic:
Invalid
Status in linux source package in Noble:
In Progress
Status in linux-oem-6.1 source package in Noble:
Invalid
Status in linux-oem-6.5 source package in Noble:
Invalid
Bug description:
[Impact]
System hangs and no external output after unplug/plug DP monitor. (AMD Radeon
Pro W7500)
Observed a bunch of [Hardware Error] messages and finally amdgpu crashed.
[Fix]
AMD provides a patch to fix the issue
https://www.spinics.net/lists/amd-gfx/msg99737.html
which is included in v6.7-rc1
7f3e6b840fa8 drm/amd/pm: Fix error of MACO flag setting code
[Testcase]
1. Connect the DUT to an external DP monitor via one of the ports on the AMD
graphics card
2. Boot into Ubuntu
3. Unplug the DP cable from the DUT
4. Wait for 30 seconds
5. Replug in the DP cable
6. Make sure the system doesn't hang and the external DP monitor works
[Where probles could occur]
The patch make sure MACO is supported only if BACO is supported. It creates a
stricter rule for MACO to avoid MACO is enabled with BACO supports. It should
be safe to apply stricter rules to enable features.
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