Questions tagged «frequency»

3
最大CPU频率卡在较低值
我已经观察到Ubuntu 13.04的问题。我先前使用的11.10上没有问题。我的Intel(R)Core(TM)i7-2620M CPU @ 2.70GHz(Dell Lattitude E6320)的最大CPU频率停留在2GHz # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq 2000000 # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies 2701000 2700000 2400000 2200000 2000000 1800000 1600000 1400000 1200000 1000000 800000 # echo 2700000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq 2000000 我可以将scaling_max_freq设置为较低的值,并且可以工作。我还可以回到2GHz,但不能超过: # echo 800000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq 800000 # echo 2000000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq # …

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