** Changed in: linux-oem-5.10 (Ubuntu Focal)
Status: Confirmed => Fix Committed
--
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/1907285
Title:
Drop i915 PSR workarounds
Status in linux package in Ubuntu:
Confirmed
Status in linux-oem-5.10 package in Ubuntu:
Invalid
Status in linux source package in Focal:
Won't Fix
Status in linux-oem-5.10 source package in Focal:
Fix Committed
Bug description:
[Impact]
Disabling PSR helps some platforms but breaks others. So let's not play
this whack-a-mole game.
In addition to that, PSR can provide significant power saving, let Intel
SoC reach PC10 or even SLP_S0 withouth turning screen off.
[Fix]
Drop PSR workaround and stick to upstream code.
[Test]
Monitor numbers in /sys/kernel/debug/pmc_core/*
With PSR enabled, some Tiger Lake laptops can reach SLP_S0 without
turning screen off.
[Regression Potential]
Panels that don't work well with PSR may break again. If that ever
happens, we can introduce a blacklist on panels.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1907285/+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
