Fix With 20.04d kernel and WX3200, unit freezes on resume
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
koba | ||
Focal |
Invalid
|
Undecided
|
Unassigned | ||
Jammy |
Fix Released
|
Undecided
|
koba | ||
linux-oem-5.14 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Undecided
|
koba | ||
Jammy |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[Impact]
With WX3200 and 20.04d kernel the unit freezes on resume
[Fix]
commit 0064b0ce85bb ("drm/amd/pm: enable ASPM by default") enabled ASPM
by default but a variety of hardware configurations it turns out that this
caused a regression.
* PPC64LE hardware does not support ASPM at a hardware level.
CONFIG_PCIEASPM is often disabled on these architectures.
* Some dGPUs on ALD platforms don't work with ASPM enabled and PCIe
subsystem disables it
Check with the PCIe subsystem to see that ASPM has been enabled
or not.
[Test Case]
1. plug wx3200 on the adl machine and make it as a output.
2. suspend&resume machine
3. check if machine could resume successfully
[Where problems could occur]
Low, just disable AMDGPU ASPM if system doesn't enable it.
CVE References
Changed in linux (Ubuntu Jammy): | |
assignee: | nobody → koba (kobako) |
status: | New → In Progress |
Changed in linux-oem-5.14 (Ubuntu Focal): | |
status: | New → In Progress |
assignee: | nobody → koba (kobako) |
tags: | added: oem-priority originate-from-1952981 somerville |
Changed in linux-oem-5.14 (Ubuntu Jammy): | |
status: | New → Invalid |
Changed in linux-oem-5.14 (Ubuntu Focal): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu): | |
status: | In Progress → Fix Released |
Changed in linux (Ubuntu Jammy): | |
status: | In Progress → Fix Released |
Changed in linux (Ubuntu Focal): | |
status: | New → Invalid |
Changed in hwe-next: | |
status: | New → Fix Released |
This bug is awaiting verification that the linux-oem- 5.14/5. 14.0-1025. 27 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification- needed- focal' to 'verification- done-focal' . If the problem still exists, change the tag 'verification- needed- focal' to 'verification- failed- focal'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed.
See https:/ /wiki.ubuntu. com/Testing/ EnableProposed for documentation how to enable and use -proposed. Thank you!