analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us
hardware limits: 800 MHz - 3.20 GHz
available frequency steps: 3.20 GHz, 3.20 GHz, 3.00 GHz, 2.90 GHz, 2.70 GHz, 2.50 GHz, 2.30 GHz, 2.20 GHz, 2.00 GHz, 1.80 GHz, 1.70 GHz, 1.50 GHz, 1.30 GHz, 1.10 GHz, 1000 MHz, 800 MHz
available cpufreq governors: conservative ondemand userspace powersave performance schedutil current policy: frequency should be within 800 MHz and 3.20 GHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency: Unable to call hardware
current CPU frequency: 1.62 GHz (asserted by call to kernel)
boost state support:
Supported: yes
Active: yes
1、实时查看cpu运行频率工具 i7z
(1)、安装i7z :sudo apt-get install i7z
(2)、运行: sudo i7z
即使什么也没做,通过i7z可以看到cpu一直处于最大频率在运行。
2、解决方法:
sudo vim /boot/grub/grub.cfg
从ro quiet splash(大概在第130-150行左右,视实际情况)后面空格后加上 intel_pstate=disable, 保存退出。 然后重启电脑,cpu就能正常的自动降频和睿频了。
亲测有效。
搬运原文链接:https://blog.csdn.net/TutinBing/article/details/93309274