☰

即使空闲时，CPU 也始终设置为最大频率

tag-icon • tag-icon 20.04 power-management battery cpu governor
即使空闲时，CPU 也始终设置为最大频率

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。

相关内容