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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