** Changed in: hwe-next
Status: In Progress => Invalid
** Changed in: hwe-next
Status: Invalid => Fix Released
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1840882
Title:
[SRU][B-OEM-OSP1/D/E] reduce s2idle power consumption when BIOS uses
shared power resources
Status in HWE Next:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Disco:
Fix Committed
Bug description:
SRU justification:
[Impact]
When system goes to suspend-to idle, it's power consumption is around 4+ w.
[Fix]
Some TBT and other ACPI devices share the same power resource, when system
goes to s2idle.
PME polling thread continue bringing up devices to D0 mode.
Use cached ACPI device power state will avoid this issue.
[Test]
Verified on 2 hardware. Tests result are good.
[Regression Potential]
Medium, upstream patches cherry-picked.
Since these hareware is only supported by 5.0+ kernel, I set B-OEM-
OSP1 and disco+ kernel tag.
To manage notifications about this bug go to:
https://bugs.launchpad.net/hwe-next/+bug/1840882/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
