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This is a rather odd problem. Whenever I try and enable cpu frequency scaling, I get the following:
Code:
[root@localhost grub]# modprobe acpi-cpufreq
FATAL: Error inserting acpi_cpufreq (/lib/modules/2.6.18-1.2798.fc6/kernel/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.ko): No such device
I'm pretty much stumped. I'm runing an Intel Pentium-M ULV 1.0GHz i686 processor. However, some quality time with the terminal and yum shows that the "kernel.i386" version is installed. Should I change to the i686 version? Is there some kmod package I need? My kernel version is 2.6.18, so I don't think there's a issue with that.
I know that my CPU supports it since it worked all the time in Gentoo and Kubuntu.
I tried modprobe cpufreq_ondemand, and that worked without error messages, however, the CPU frequency scaling applet for Gnome doesn't seem to work still (which is how I want to control the frequency scaling, since that'd be easier - I'm trying to keep my system more GTD, rather than my personal Linux playground).
Thanks for your help though. I'm sure I'm getting closer to the solution with your suggestion of cpufreq_ondemand
Yes, you need the 686 kernel. I had the exact same problem with FC6 - it, by default, installed the 586 kernel. Deleted that, and without reboot, installed the 686 kernel. Works with reboot.
A small hitch for future reference: the i586 kernel that was installed was slightly more up to date than the replacement i686 kernel. After it finished downloading (btw: an easier download would be "$ yum kernel.i686") it quit because the installed was more recent than the replacement. Going to /var/cache/yum/core/packages and then using "$ rpm --force --install kernel-{VERSION}.{ARCH}.rpm" worked.
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