I have an X1 Yoga with an Intel Core i5-6200U CPU @ 2.30GHz, running Debian/testing on a 4.6.0-1-amd64 kernel using the intel_pstate driver.
I notice it idles at 500Mhz when plugged in, and 800Mhz on battery. (No typo! You read that right.)
I stopped laptop-mode-tools from adjusting CPU frequency scaling or the intel_pstate settings (via CONTROL_CPU_FREQUENCY=0 and CONTROL_INTEL_PSTATE="0"). So on both AC and on battery I have:
Code: Select all
$ head /sys/devices/system/cpu/intel_pstate/*
==> /sys/devices/system/cpu/intel_pstate/max_perf_pct <==
100
==> /sys/devices/system/cpu/intel_pstate/min_perf_pct <==
14
==> /sys/devices/system/cpu/intel_pstate/no_turbo <==
0
==> /sys/devices/system/cpu/intel_pstate/num_pstates <==
25
==> /sys/devices/system/cpu/intel_pstate/turbo_pct <==
85
Does anyone have any insight?
Thanks in advance.