昨天写了如何在Win11下主动降频率，解决ThinkBook噪音问题，今天看下Ubuntu的
我的版本是22.04，默认驱动是acpi-cpufreq，这么确认驱动：
grep . /sys/devices/system/cpu/cpufreq/policy*/scaling_driver
/sys/devices/system/cpu/cpufreq/policy0/scaling_driver:acpi-cpufreq
...
grep . /sys/devices/system/cpu/cpufreq/policy*/scaling_driver
/sys/devices/system/cpu/cpufreq/policy0/scaling_driver:acpi-cpufreq
...
grep . /sys/devices/system/cpu/cpufreq/policy*/scaling_driver /sys/devices/system/cpu/cpufreq/policy0/scaling_driver:acpi-cpufreq ...
这么禁用睿频：
echo "0" | sudo tee /sys/devices/system/cpu/cpufreq/boost
echo "0" | sudo tee /sys/devices/system/cpu/cpufreq/boost
echo "0" | sudo tee /sys/devices/system/cpu/cpufreq/boost