[Bug 36014] Re: kernel can't scale cpu frequency

[Constantine Evans]

For some reason, my comment I thought I had made a few days ago didn't
show up here.

The issue wasn't in speedstep-centrino, it was in the ppc code of acpi,
acpi_processor_ppc_notifier. My hack of commenting out code in the
speedstep-centrino code was to keep the acpi code from being used to
limit the frequency, and it is quite probable that acpi_cpufreq uses
this code as well.

Nacim Rahal's comments might point to what is happening, however. It
could be that the BIOS is frequency-limiting due to overheating, and
then something is happening to cause the limiting to stick even after
the overheating. I might be able to test this if I have time next week.

-- 
kernel can't scale cpu frequency
https://launchpad.net/bugs/36014