Public bug reported:
Binary package hint: linux-image-2.6.28-11-generic
I have an Xeon processor (X3360) on DFI LP LT P35 T2R motherboard
(P35-based). I'm running ubuntu-9.04-desktop-amd64. The out-of-the-box
kernel does not allow me to use cpu scaling to alter my processor's
speed. This is in contrast to other LINUX distros in which cpu scaling
works just fine without altering any BIOS settings (Debian/Lenny-amd64,
Arch/Overlord-amd64).
When I log into Gnome, the CPU Frequency Scaling Monitor tells me, "CPU
frequency scaling unsupported. You will not be able to modify the
frequency of your machine. Your machine may be misconfigured or not have
hardware support for CPU frequency scaling."
$ lsb_release -rd
Description: Ubuntu jaunty (development branch)
Release: 9.04
$ apt-cache policy linux-image-2.6.28-11-generic
linux-image-2.6.28-11-generic:
Installed: 2.6.28-11.38
Candidate: 2.6.28-11.38
Version table:
*** 2.6.28-11.38 0
500 http://us.archive.ubuntu.com jaunty/main Packages
100 /var/lib/dpkg/status
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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Jaunty 2.6.28-11-generic no cpuscaling-Error inserting acpi_cpufreq
https://bugs.launchpad.net/bugs/350360
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