If you (or anybody else) still have this hardware, is scaling working
properly these days?
** Package changed: cpufrequtils (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/441169
Title:
CPU Scaling no longer supported on Single core 1.7Ghz Centrino
Status in linux package in Ubuntu:
Incomplete
Bug description:
Binary package hint: libcpufreq0
Hi, I've noticed slow performance. My details are similar to the forum
post "Single core 1.7Ghz Centrino stuck at 600MHz?" from 12th May
2009. The post has no answer or further reference so I raised a bug
here and I'll cross reference it on the Forum. My processor is stuck
at 798MHz and on adding the cpufreq-applet I was treated to an error,
"Warning CPU Frequency Scaling not supported". I have a Dell Inspiron
9300. Regards, Richard
Here is the original post:
--------------------------------
I'm been experiencing quite a slow performance on Ubuntu, specially on
flash videos, and finally I discovered the it was not xorg or firefox
or the ati driver but rather the cpu is stuck at 600MHz according to
/proc/cpuinfo.
model name : Intel(R) Pentium(R) M processor 1.70GHz
stepping : 6
cpu MHz : 600.012
I had been experiencing sudden burst in performance for a while, and now I'm
guessing that all of a sudden the cpu just "breaks free" and goes to full power
for absolutely no reason, without my intervention. I'm waiting for this to
happen again, but I'm pretty sure this is the problem.
I've been trying to fix it for a while but it's been quite difficult.
I installed powernowd (success was reported here
http://ubuntuforums.org/showthread.php?t=1134657), and running it says
Please make sure that:
- ....
- That you have sysfs mounted /sys
- That you have the core cpufreq and cpufreq-userspace
modules loaded into your kernel
Which I don't by checking lsmod | grep cpu, and no wonder, because
according to something I read the new ubuntu kernel has the cpufreq
modules built-in. But something is indeed failing because running ls
/sys/devices/system/cpu/cpu0 reveals
cpuidle crash_notes topology
The frequency part is missing.
Any input? Can I refer to any log for further info?
Thx in advance, I would really like to fix this thing... O_o
Last edited by Cenoforums; May 12th, 2009 at 04:14 PM.. Reason: reference post
ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 9.04
ExecutablePath: /usr/lib/gnome-applets/cpufreq-applet
Package: gnome-applets 2.26.1-0ubuntu1
ProcEnviron:
LANG=en_GB.UTF-8
SHELL=/bin/bash
SourcePackage: gnome-applets
Uname: Linux 2.6.28-6-386 i686
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