Public bug reported:
[Impact]
Some USB devices aren't working if they are plugged under system sleep.
[Fix]
Consider xHCI PORTSC CAS bit over other conditions.
[Test]
Plug or re-plug USB devices during system sleep. USB devices always work
after system resume.
[Regression Potential]
There could be devices that depends on the old (but wrong) behavior.
However it's really unlikely and it's against xHCI spec, we can deal
with those quirky devices if any.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: High
Status: Confirmed
** Affects: linux-oem-5.6 (Ubuntu)
Importance: Undecided
Status: Won't Fix
** Affects: linux (Ubuntu Focal)
Importance: Undecided
Status: Won't Fix
** Affects: linux-oem-5.6 (Ubuntu Focal)
Importance: High
Status: Confirmed
** Tags: oem-priority originate-from-1889734 somerville
** Also affects: linux-oem-5.6 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-oem-5.6 (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: linux-oem-5.6 (Ubuntu)
Status: New => Won't Fix
** Changed in: linux (Ubuntu Focal)
Status: New => Won't Fix
** Changed in: linux-oem-5.6 (Ubuntu Focal)
Status: New => Confirmed
** Changed in: linux (Ubuntu)
Status: New => Confirmed
** Changed in: linux-oem-5.6 (Ubuntu Focal)
Importance: Undecided => High
** Changed in: linux (Ubuntu)
Importance: Undecided => High
** Tags added: oem-priority originate-from-1889734 somerville
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https://bugs.launchpad.net/bugs/1892678
Title:
Fix non-working USB devices plugged during system sleep
Status in HWE Next:
New
Status in linux package in Ubuntu:
Confirmed
Status in linux-oem-5.6 package in Ubuntu:
Won't Fix
Status in linux source package in Focal:
Won't Fix
Status in linux-oem-5.6 source package in Focal:
Confirmed
Bug description:
[Impact]
Some USB devices aren't working if they are plugged under system sleep.
[Fix]
Consider xHCI PORTSC CAS bit over other conditions.
[Test]
Plug or re-plug USB devices during system sleep. USB devices always work
after system resume.
[Regression Potential]
There could be devices that depends on the old (but wrong) behavior.
However it's really unlikely and it's against xHCI spec, we can deal
with those quirky devices if any.
To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/1892678/+subscriptions
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