CPU Scaling stopped working

Crocodil · Posted: Thu Sep 15, 2005 10:27 pm Post subject: CPU Scaling stopped working

Hi

Some time ago I have fallowed Gentoo's Howto on CPU Scaling and I've enabled it for my desktop AMD64 on nForce4 motherboard. It worked great (using cpufreqd and cpufrequtils) with ondemand governor so I haven't checked it for quite a bit time...

Today, just for fun I did "cat /proc/cpuinfo" and were shocked to see that the scalling stopped working

I did many things in the meantime ("emerge -u world" just for fun

) so I have no idea what has caused this. I've recently switched to 2.6.13 kernel but made sure that everything needed was compiled in. I've also tried other pretty obvious things (editing config files, re-emerging, etc.)

I'm all out of ideas and I would be very grateful for any suggestions

Best regards,
Crocodil

Sadako · Posted: Thu Sep 15, 2005 10:37 pm Post subject:

How about trying powernowd instead (of cpufrequtils)?
It uses the userspace driver rather than ondemand.
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wizatdiz · n00b Joined: 20 Aug 2004 Posts: 73 Location: Florida

Interesting. I wonder if your problem is the same as mine. I noticed that my cpu was not scaling down as well. I assumed that it was kernel related but, after checking today, I believe that it is a problem in the startup script. I have the following in the local.start: