Public bug reported:
Binary package hint: linux-image-2.6.28-11-generic
Upon booting 9.04 Jaunty on my netbook (Intel Atom N270 @ 1.66GHz) the
system is using the ondemand governor, and is running at 800Mhz.
There's virtually nothing I can do to the system to get it to use a
faster frequency. Setting the governor to "performance" makes it got to
1.6GHz.
I've written a small "while(1) i++;" program to load down both virtual
cores (hyperthreaded) and even under 100% load on both cores, it still
sticks at 800MHz.
I'm on battery power 100% of the time, including the initial boot. I
haven't checked to see if there's anything different if under AC power,
but can do so if you think it would effect this.
$ uname -a
Linux slacy-laptop 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:57:59 UTC
2009 i686 GNU/Linux
ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
HibernationDevice: RESUME=UUID=473c5a8e-df00-43b5-96d2-5cbbfdcc5f3e
MachineType: LENOVO Lenovo
Package: linux-image-2.6.28-11-generic 2.6.28-11.42
ProcCmdLine: root=UUID=1e0472b8-386f-467a-b19a-f24196576af7 ro quiet splash
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.28-11.42-generic
SourcePackage: linux
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386
--
cpufreq ondemand governor stuck at lowest frequency
https://bugs.launchpad.net/bugs/367739
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