FS#35243 - cpupower not working with linux 3.9.2-1
Attached to Project:
Arch Linux
Opened by Byron Clark (byronc) - Monday, 13 May 2013, 12:32 GMT
Last edited by Gerardo Exequiel Pozzi (djgera) - Monday, 13 May 2013, 22:07 GMT
Opened by Byron Clark (byronc) - Monday, 13 May 2013, 12:32 GMT
Last edited by Gerardo Exequiel Pozzi (djgera) - Monday, 13 May 2013, 22:07 GMT
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Details
Description:
After upgrading to linux 3.9.2-1, cpupower no longer starts at boot. The problem appears to be that neither the acpi nor acpi-cpufreq modules will load. Manually running modprobe results in this error: % sudo modprobe acpi_cpufreq modprobe: ERROR: could not insert 'acpi_cpufreq': Device or resource busy |
This task depends upon
Closed by Gerardo Exequiel Pozzi (djgera)
Monday, 13 May 2013, 22:07 GMT
Reason for closing: Not a bug
Monday, 13 May 2013, 22:07 GMT
Reason for closing: Not a bug
Comment by Jan de Groot (JGC) -
Monday, 13 May 2013, 14:35 GMT
Comment by Byron Clark (byronc) -
Monday, 13 May 2013, 18:25 GMT
This is because your CPU is supported by the intel_pstate driver
that has been built into the kernel. That driver includes its own
governor and is incompatible with anything else than performance
or powersave governors.
Thanks, JGC. Switching to the powersave governor works as
expected.