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Ubuntu 11.10 x64.. not scaling 4 cores.

post #1 of 4
Thread Starter 
Hi guys

Ubuntu 11.10 x64.. is not scaling all 4 cores...

I get one core at the proper scale (3.2Ghz) but the other 3 are at 800mhz.

I have installed freq indicator and I can control the frequency, but it seems to not go to all 4 cores.. anyone know a solution?

thanks

Dava
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post #2 of 4
Have you tried cpufreq? It should be able to scale all cores to 3.2ghz.
post #3 of 4
Try installing cpufrequtils and check with that instead:

Code:
cpufreq-info
(eventually paste the output if it doesn't seem helpful)

If you can verify that the other cores don't run at full speed, try doing something like this from a terminal:

Code:
for i in {0..3}; do sudo cpufreq-set -c $i -g performance; done
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post #4 of 4
Thread Starter 
thanks guys!

Doh! needed a reboot! after installing freqency indicator, i did a reboot (I was in windows the other day) and it working fine.

so sorry for asking.. noobbyyy mistake :blush: .. but it HAD been doing it since my last install two weeks ago.

is 11.10 buggy for anyone else?

(I have ethernet problems too, installed the realtek driver again, but it keeps cutting out.. thinking of going back to 11.04)

Dava

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