![即使空闲时,CPU 也始终设置为最大频率](https://linux22.com/image/1176226/%E5%8D%B3%E4%BD%BF%E7%A9%BA%E9%97%B2%E6%97%B6%EF%BC%8CCPU%20%E4%B9%9F%E5%A7%8B%E7%BB%88%E8%AE%BE%E7%BD%AE%E4%B8%BA%E6%9C%80%E5%A4%A7%E9%A2%91%E7%8E%87.png)
我最近在搭载 Intel Core i7-1065G7 的联想 Yoga S740 上安装了 Ubuntu 20.04.01 LTS。
我注意到我的笔记本电脑总是很热(CPU 温度大约 60 度)并且风扇发出噪音,同时电池消耗很大。
经过进一步研究,我注意到 CPU 频率始终在 3.5 GHZ 左右。
调速器是省电的。我尝试使用 tlp 降低最大频率(例如,降低到 2.0 GHz),但它始终保持在最大频率。
运行 Live USB 时也会发生这种行为。
将输出添加到命令:
/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu1/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu2/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu3/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu4/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu5/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu6/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu7/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu1/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu2/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu3/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu4/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu5/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu6/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu7/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu0/cpufreq/affected_cpus:0
/sys/devices/system/cpu/cpu0/cpufreq/base_frequency:1300000
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq:3900000
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_min_freq:400000
/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_transition_latency:0
/sys/devices/system/cpu/cpu0/cpufreq/energy_performance_available_preferences:default performance balance_performance balance_power power
/sys/devices/system/cpu/cpu0/cpufreq/energy_performance_preference:balance_performance
/sys/devices/system/cpu/cpu0/cpufreq/related_cpus:0
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors:performance powersave
/sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq:3015807
/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor:powersave
/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq:3900000
/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq:400000
/sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed:<unsupported>
内核版本是 5.4.0-47-generic
答案1
我设法通过删除“启动应用程序”中的所有命令并安装 CPU 电源管理 Gnome 扩展来解决这个问题(不确定如何解决)。
这似乎起了作用。