Public bug reported:
Binary package hint: gnome-applets
I am usually running Karmic XFCE. Trying to change the CPU frequency
governor from the command line fails. Using the applet while in Gnome
works. I can also switch to performance and powersave governor but none
of the other that are available.
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
conservative ondemand userspace powersave performance
$ time sudo cpufreq-selector -g ondemand
real 0m30.416s
user 0m0.016s
sys 0m0.008s
$ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
performance
I get the following warning in /var/log/syslog: "Sep 18 21:51:07 X24 kernel:
[11130.102375] ondemand governor failed, too long transition latency of HW,
fallback to performance governor"
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: karmic
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cannot change governor from command line
https://bugs.launchpad.net/bugs/432706
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