Ubuntu
linux-source-2.6.22 package

  1. Bug #132271
  2. Comment #62

Comment 62 for bug 132271

Revision history for this message
samnmax (aleixmercader) wrote : Re: [Bug 132271] Re: [GUTSY] cpu freq scaling not working anymore

I was able to solve my broken ACPI tables by decompiling and fixing the
DSDT.

The frequency field for the 600 MHz state was 0, hence the line in dmesg:
"ACPI: Invalid _PSS data: freq is zero"

I set it to 600, compiled it again and added it to the initrd. Now I can use
acpi-cpufreq to scale the cpu clock to either 600 or 1600 MHz (not the full
range, but that's enough). It even works in Vista with the DSDT registry
override.

Keep the good work with Ubuntu!

2008/2/13, Colin King <email address hidden>:
>
> ** Changed in: linux (Ubuntu)
> Assignee: Ubuntu Kernel Team (ubuntu-kernel-team) => Colin King
> (colin-king)
>
> --
> [GUTSY] cpu freq scaling not working anymore
> https://bugs.launchpad.net/bugs/132271
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> of the bug.
>