Я пытаюсь включить intel_pstate в Ubuntu 14.04, но он не работает, pcc-cpufreq работает:

Процессор: Intel(R) Xeon(R) CPU E5-2698 v4 @ 2,20 ГГц

$ uname -a
Linux server 4.15.14-041514-generic #201803281351 SMP Wed Mar 28 17:53:51 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

$ cat /boot/config-4.15.14-041514-generic | grep -i pstate
CONFIG_X86_INTEL_PSTATE=y

$ cpufreq-info 
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
analyzing CPU 0:
  driver: pcc-cpufreq
  CPUs which run at the same hardware frequency: 0
  CPUs which need to have their frequency coordinated by software: 0
  maximum transition latency: 4294.55 ms.
  hardware limits: 1.20 GHz - 2.20 GHz
  available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil
  current policy: frequency should be within 1.20 GHz and 2.20 GHz.
                  The governor "performance" may decide which speed to use
                  within this range.
  current CPU frequency is 3.25 GHz.

$ cat /proc/cmdline 
BOOT_IMAGE=/vmlinuz-4.15.14-041514-generic root=/dev/mapper/vghdd-root ro cgroup_enable=memory swapaccount=1 intel_pstate=active

Кто-нибудь может помочь?

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