Recently, I've been noticing that my (office) ThinkPad T60 keeps telling me it's CPU runs at just 1GHz, regardless of the CPU load.
cpufreq-info said something like
current policy: frequency should be within 1000 MHz and 1000 Mhz.
Even more interesting, as soon as I unplugged the power, I got the message I expected:
current policy: frequency should be within 1000 MHz and 1.83 GHz.
Solution, thanks to the ThinkWiki article about frequency scaling problems (cache):
Just add
processor.ignore_ppc=1
to the kernel command line. Now frequency scaling and the CPU governors work as expected.
cpufreq-info said something like
current policy: frequency should be within 1000 MHz and 1000 Mhz.
Even more interesting, as soon as I unplugged the power, I got the message I expected:
current policy: frequency should be within 1000 MHz and 1.83 GHz.
Solution, thanks to the ThinkWiki article about frequency scaling problems (cache):
Just add
processor.ignore_ppc=1
to the kernel command line. Now frequency scaling and the CPU governors work as expected.