Just bought a ThinkPad E460 (i5-6200U, regular SATA drive): enabling everything in the "Tunables" list of powertop, I get up to C10 for all cores, but PC7 only for the package. I'm on Arch, and I've also tried the latest linux-git kernel (4.8.0-rc6).
BTW, just have a look at table 4-4, page 70 of [1]: having a FHD screen that does NOT support PSR ([drm:intel_psr_enable] PSR not supported by this panel in kernel log), without turning off the screen, my max package state is actually PC8!
Power management, mobile and firmware developer on Linux. Security developer at Aurora. Ex-biologist. mjg59 on Twitter. Content here should not be interpreted as the opinion of my employer. Also on Mastodon.
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Interesting news?
Date: 2016-09-18 08:11 pm (UTC)BTW, just have a look at table 4-4, page 70 of [1]: having a FHD screen that does NOT support PSR ([drm:intel_psr_enable] PSR not supported by this panel in kernel log), without turning off the screen, my max package state is actually PC8!
So, any thoughs to level up from PC7 to PC8?
[1] http://www.intel.com/content/dam/www/public/us/en/documents/datasheets/6th-gen-core-family-mobile-u-y-processor-lines-datasheet-vol-1.pdf