It's T460s with i7-6600U (exact model 20F9003WRT, CPU microcode version 0x84). I could reach PC7/8 every time I'm on battery, on commit ba3150ac3876acd082307f142597d3482107facc of drm-intel + commit which fixes 4.6 regression. I'm also using TLP which forces ALPM (min_power) and setting energy_perf_policy to powersave. Hope this will help you.
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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Re: The reason is iGPU
Date: 2016-04-26 07:12 pm (UTC)