cpu调频
cpu频率相关的接口都在这个目录下
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
for i in /sys/devices/system/cpu/*/cpufreq/scaling_governor; do echo powersave > $i; done

显卡调频
/sys/class/drm/card0/device/power_dpm_force_performance_level

降功耗
echo powersave > /sys/module/pcie_aspm/parameters/policy
echo auto | tee /sys/bus/pci/devices//power/control
for i in /sys/bus/usb/devices//power/autosuspend; do echo 1 > $i; done
powertop --auto-tune
for i in /sys/class/scsi_host/*/link_power_management_policy; do echo min_power > $i; done
echo low > /sys/class/drm/card0/device/power_dpm_force_performance_level
echo 1 > /proc/sys/vm/laptop_mode
echo 6000 > /proc/sys/vm/dirty_writeback_centisecs
echo 6000 > /proc/sys/vm/dirty_expire_centisecs
echo 1 > /sys/module/snd_hda_loongson/parameters/power_save

除了CPU频率，显卡频率也可以自己调下，再看看效果

nsz@nsz-PC:~$ /sys/class/drm/card0/device/power_dpm_force_performance_level

bash: /sys/class/drm/card0/device/power_dpm_force_performance_level: 没有那个文件或目录
nsz@nsz-PC:~$ sudo /sys/class/drm/card0/device/power_dpm_force_performance_level

请输入密码:
验证成功
sudo: /sys/class/drm/card0/device/power_dpm_force_performance_level：找不到命令

nsz@nsz-PC:​ sudo for i in /sys/bus/usb/devices//power/autosuspend; do echo 1 > i; done
bash: 未预期的符号“do”附近有语法错误
nsz@nsz-PC:​ sudo for i in /sys/bus/usb/devices//power/autosuspend; sudo echo 1 > i; done
bash: 未预期的符号“done”附近有语法错误

nsz@nsz-PC:$ sudo echo low > /sys/class/drm/card0/device/power_dpm_force_performance_level
bash: /sys/class/drm/card0/device/power_dpm_force_performance_level: 权限不够
nsz@nsz-PC:$ sudo su
root@nsz-PC:/home/nsz# echo low > /sys/class/drm/card0/device/power_dpm_force_performance_level
bash: /sys/class/drm/card0/device/power_dpm_force_performance_level: 权限不够
root@nsz-PC:/home/nsz# echo 1 > /proc/sys/vm/laptop_mode
root@nsz-PC:/home/nsz# echo 6000 > /proc/sys/vm/dirty_writeback_centisecs
root@nsz-PC:/home/nsz# echo 6000 > /proc/sys/vm/dirty_expire_centisecs
root@nsz-PC:/home/nsz# echo 1 > /sys/module/snd_hda_loongson/parameters/power_save

bash: /sys/module/snd_hda_loongson/parameters/power_save: 没有那个文件或目录

提示这样

https://blog.51cto.com/zhangxueliang/5307780

linux如deepin manjaro对笔记本电脑电池的伤害解决方案：TLP：一个可以延长 Linux 笔记本电池寿命的高级电源管理工具

这个咋样？

power_dpm_force_performance_level 找不到这个文件 我安装CPUPowerGUI_v0.1.1_amd64 cpu降下来了 但显卡没有 还是发热

echo 350 | sudo tee /sys/class/drm/card0/gt_boost_freq_mhz

echo 350 | sudo tee /sys/class/drm/card0/gt_max_freq_mhz

sudo apt autoremove laptop-mode-tools

用了这三个 重启了电脑 目前风扇安静，没安装n卡驱动呢