Fix an issue that some PCI devices get incorrectly suspended
Bug #1764684 reported by
Kai-Heng Feng
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Medium
|
Unassigned | ||
Xenial |
Invalid
|
Undecided
|
Unassigned | ||
Artful |
Fix Released
|
Undecided
|
Unassigned | ||
Bionic |
Fix Released
|
Medium
|
Unassigned | ||
linux-oem (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Xenial |
Fix Released
|
Undecided
|
Unassigned | ||
Artful |
Invalid
|
Undecided
|
Unassigned | ||
Bionic |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
===SRU Justification===
[Impact]
Some PCI device are not power managed by system firmware get runtime suspended incorrectly. In this case it's an xHC device, which can't be woken up by plugging USB device.
[Test]
With the patch, the xHC no longer get put to suspend incorrectly. USB devices can work on the xHC now.
[Fix]
We need to check if the device is power managed by system firmware, also if it supports PME from D3hot.
[Regression Potential]
Low.
It fixes a regression caused by the PM core refactor.
tags: | added: originate-from-1746879 somerville |
Changed in linux (Ubuntu): | |
status: | Incomplete → Triaged |
importance: | Undecided → Medium |
Changed in linux (Ubuntu Xenial): | |
status: | New → Invalid |
Changed in linux-oem (Ubuntu Xenial): | |
status: | New → Fix Committed |
Changed in linux (Ubuntu Artful): | |
status: | New → In Progress |
Changed in linux-oem (Ubuntu Artful): | |
status: | New → Invalid |
Changed in linux (Ubuntu Artful): | |
status: | In Progress → Fix Committed |
Changed in linux (Ubuntu Bionic): | |
status: | Triaged → Fix Committed |
Changed in hwe-next: | |
status: | New → Fix Released |
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This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1764684
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.