[mythtv-users] Cool'n'Quiet setup help

John Drescher drescherjm at gmail.com
Mon Feb 9 22:47:23 UTC 2009


> Thanks for this help.  I enabled C&Q and like you said things started to
> show up.  Here are some things  you expect:
> dad at myth_desktop:~$ cat
> /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
> ondemand
> dad at myth_desktop:~$ cat
> /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies
> 2800000 2600000 2400000 2200000 2000000 1800000 1000000
> dad at myth_desktop:~$ cat
>  /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold
> 80
> and one you may not have:
> dad at myth_desktop:~$ sudo echo -n 10 >
> /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold
> -bash: /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold:
> Permission denied
> I used nano to write "10" into this file and it still reads 80 when read.
> The file time stamp changes but not the content.  Strange.

10 is too low. 15 is the minimum try that.

> I looked at what the system is doing under different loads and it is giving
> me three levels that I noticed, 1.0, 1.8, and 2.8.  It goes to 1.0 even
> while decoding HD content, which is not what I want.

Fix the above and report back.

John


More information about the mythtv-users mailing list