cpu frequency governor

Hi, I've an HP dual core (2000 mhz) with Xubuntu ad I don't know how to make permanent settings on the cpu governor.
In particular, when I go on battery and I use the powersave governor, the frequency is "alted" at 800 mhz and never increases, also if the system load is high.
Instead, when I go on ac, there is no problem and the frequency scale fine (Among 800 and 2000 mhz).

I'm using cpufrequtils and kpowersave.

 

I'm using Mint Xfce, which is a variation of Xubuntu, and mine scales fine on AC....I'm using Power Manager 2.24.0 (gnome) which comes out of the box...I haven't tried it on batter yet, but will. Why did you load up Kpowersave? Familiarity?

 

powersave is lowest like performance is highest, ondemand is the one that changes the speed

 

That's definitely a configuration issue. As D-EJ915 mentioned, what you need to do is get your power manager to keep the cpufreq governor at the "ondemand" setting even while on battery. I'm unfamiliar with kpowersave, so I don't know how you'd achieve that.

 

Don't load any of that, and start gnome-power-manager. IME, that's the easiest way to change governors in Ubuntu, but if you want 'conservative' you'll need to set it in gconf-editor, since the UI doesn't support it. Once you move to Xfce 4.6, its new powermanager supports this functionality.

I'm sure you could do it with kpowersave, but pulling KDE apps seems rather odd.

By the way, check /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor to see what's actually running, and echo a governor in to change it manually. I've had trouble with permissions in Ubuntu, though, so you might have trouble changing it here.

 

So is it sufficient just to set the governor 'ondemand' 'powersave' ?

With kpowersave I can only choose among ondemand, performance and conservative altough I've installed (By cpufrequtils) all the governors (Performance, ondemand, conservative, etc.)

 

Is the powersave kernel module loaded?

 

Typing lsmod I "see" cpufreq_powersave module...