On 2015.09.17 12:24 Deirdre Kylie wrote: > Here is the results after "apt-get"-ing it and running cpufreq-info > ~~~~~~~~~~~~~~~~~~~~~~~~~~~ > ... > Preparing to unpack .../cpufrequtils_008-1_amd64.deb ... > Unpacking cpufrequtils (008-1) ... > Processing triggers for man-db (2.6.7.1-1ubuntu1) ... > Processing triggers for ureadahead (0.100.0-16) ... > ureadahead will be reprofiled on next reboot > Setting up libcpufreq0 (008-1) ... > Setting up cpufrequtils (008-1) ... > * Loading cpufreq kernel modules... [fail] > * CPUFreq Utilities: Setting ondemand CPUFreq governor... > * disabled, governor not available... > [ OK ] > Processing triggers for libc-bin (2.19-0ubuntu6.6) ... > Processing triggers for ureadahead (0.100.0-16) ... > root@deeDell:/home/dee# cpufreq-info > cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 > Report errors and bugs to cpufreq@xxxxxxxxxxxxxxx, please. > analyzing CPU 0: > no or unknown cpufreq driver is active on this CPU > maximum transition latency: 4294.55 ms. > analyzing CPU 1: > no or unknown cpufreq driver is active on this CPU > maximum transition latency: 4294.55 ms. It sounds as though you do not have any frequency scaling driver, which might be a due to a BIOS setting (I don't know), and so no you shouldn't try to use cpufrequtils. Here is a way to check (there may be better ways): First there is a scaling driver: doug@s15:~/temp$ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_driver intel_pstate intel_pstate intel_pstate intel_pstate intel_pstate intel_pstate intel_pstate intel_pstate doug@s15:~/temp$ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor powersave powersave powersave powersave powersave powersave powersave powersave Second there is not a scaling driver: doug@doug-64:~$ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_driver cat: /sys/devices/system/cpu/cpu*/cpufreq/scaling_driver: No such file or directory In the latter case the CPU frequency is fixed and is always the same: doug@doug-64:~$ grep MHz /proc/cpuinfo cpu MHz : 3391.586 cpu MHz : 3391.586 -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
