Fix regression introduced by codec PM change
Bug #1912676 reported by
Kai-Heng Feng
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
OEM Priority Project |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Fix Released
|
Undecided
|
Unassigned | ||
Focal |
Invalid
|
Undecided
|
Unassigned | ||
Groovy |
Fix Released
|
High
|
Unassigned | ||
linux-oem-5.10 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
High
|
Unassigned | ||
Groovy |
Invalid
|
Undecided
|
Unassigned |
Bug Description
[Impact]
After the codec PM optimization, laptops with SOF may take very long to
suspend. In addition to that, HDA may not be able to be runtim suspended
again after resume from hibernation.
[Fix]
Prevent the SOF driver touches codec during system suspend, and properly
refcount the PM usage counter.
[Test]
On an affected SOF system, it takes 5 mins to suspend.
On another affected HDA system, S4 resume causes high power consumption
becuase HDA controller can't be runtime suspended.
Both issues are gone by applying these patches.
[Where problems could occur]
If somehow any laptop depends on the old behavior to work properly, this
can break them. It's highly unlikely though.
CVE References
tags: | added: oem-priority originate-from-1912602 ouagadougou |
Changed in linux (Ubuntu Focal): | |
status: | New → Invalid |
Changed in linux (Ubuntu Groovy): | |
status: | New → Confirmed |
Changed in linux-oem-5.10 (Ubuntu): | |
status: | New → Invalid |
Changed in linux-oem-5.10 (Ubuntu Groovy): | |
status: | New → Invalid |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
status: | New → Confirmed |
Changed in linux (Ubuntu Groovy): | |
importance: | Undecided → Critical |
importance: | Critical → High |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
importance: | Undecided → High |
tags: | added: originate-from-1913680 |
tags: | added: originate-from-1913684 stella |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
status: | Confirmed → Fix Committed |
tags: |
added: verification-done-focal removed: verification-needed-focal |
tags: | added: originate-from-1912603 |
tags: | added: originate-from-1912599 |
Changed in linux (Ubuntu Groovy): | |
status: | Confirmed → Fix Committed |
tags: |
added: verification-done-groovy removed: verification-needed-groovy |
Changed in oem-priority: | |
status: | New → Fix Released |
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 1912676
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.