Same problem with the random lockups here, well I say random...
It's almost always when it's in the process of changing speed, doesn't tend to happen when the CPU is maxed out, usually happens with firefox open, never happened when I'm gaming
CPU speed scaling stability problems
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Thanks a lot. I set it and all is ok!halfgaar wrote:There is some configuration to be done. You can let the kernel determine the frequency, or a userland program. I believe the latter is a thing of the past now.
See "http://gentoo-wiki.com/HOWTO_PowerNow!" (the exclamaition mark ruins phpbb's url-tag). It's up to you to set either the ondemand or conservative governor. Ondemand is more logical to me, because conservative waits too long with switching the frequency. It's more suited to laptop use, the kernel says so as well.
But, I disabled cool'n'quiet, because I do notice slowdown in repsonsiveness, and I suspect the difference in powerusage is not big. There is only a 2 degree C difference in temperature between idle without c'n'q, and with c'n'q. When the CPU is stressed, the temp raised about 10-12 degrees, so even without c'n'q, it's quite low on power. And, unreal tournament doesn't respons well to CPU frequency changing...