Public bug reported: [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. ** Affects: linux (Ubuntu) Importance: Undecided Assignee: koba (kobako) Status: In Progress ** Affects: linux-oem-5.14 (Ubuntu) Importance: Undecided Status: New ** Affects: linux (Ubuntu Focal) Importance: Undecided Status: New ** Affects: linux-oem-5.14 (Ubuntu Focal) Importance: Undecided Assignee: koba (kobako) Status: In Progress ** Affects: linux (Ubuntu Jammy) Importance: Undecided Assignee: koba (kobako) Status: In Progress ** Affects: linux-oem-5.14 (Ubuntu Jammy) Importance: Undecided Status: New ** Also affects: linux-oem-5.14 (Ubuntu) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Jammy) Importance: Undecided Status: New ** Also affects: linux-oem-5.14 (Ubuntu Jammy) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: linux-oem-5.14 (Ubuntu Focal) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Jammy) Assignee: (unassigned) => koba (kobako) ** Changed in: linux (Ubuntu Jammy) Status: New => In Progress ** Changed in: linux-oem-5.14 (Ubuntu Focal) Status: New => In Progress ** Changed in: linux-oem-5.14 (Ubuntu Focal) Assignee: (unassigned) => koba (kobako) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1961855 Title: Fix With 20.04d kernel and WX3200, unit freezes on resume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1961855/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs