如果我关闭 PC,然后断开与插槽的连接并重新启动,则 CPU 的运行频率至少为 480MHz。但是,如果我再次重新启动它,这次不移除插槽,频率就会恢复正常。如果您还不明白:
- 关掉我的电脑。
- 移除插座连接。
- 稍后重新启动。
结果:频率为 480MHz(这是最低可能的),运行和启动非常缓慢。
- 关闭电脑。
- 不要移除插座。
- 重启
结果:频率恢复正常。
请注意,我有一台笔记本电脑,电池不能用,需要不断插入电池才能工作。
OS: Ubuntu 16.04, 64 bit.
CPU: Intel(R) Celeron(R) CPU N3050 @ 1.6GHz
Product : Inspiron 14-3452 (06AC)
Max frequency: 2160MHz
Min frequency: 480MHz
附加信息:
正常启动:
/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu1/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/intel_pstate/max_perf_pct:100
/sys/devices/system/cpu/intel_pstate/min_perf_pct:22
/sys/devices/system/cpu/intel_pstate/no_turbo:0
/sys/devices/system/cpu/intel_pstate/num_pstates:22
/sys/devices/system/cpu/intel_pstate/status:active
/sys/devices/system/cpu/intel_pstate/turbo_pct:33
启动缓慢(480MHz):
/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver:intel_pstate
/sys/devices/system/cpu/cpu1/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/intel_pstate/max_perf_pct:100
/sys/devices/system/cpu/intel_pstate/min_perf_pct:22
/sys/devices/system/cpu/intel_pstate/no_turbo:0
/sys/devices/system/cpu/intel_pstate/num_pstates:22
/sys/devices/system/cpu/intel_pstate/status:active
/sys/devices/system/cpu/intel_pstate/turbo_pct:33