Romain, I'd sas that for additional troubleshooting the issue the following
article may give you some hints:
http://linoxide.com/how-tos/cpu-bottleneck-linux/
You should have the following packages installed: procps and sysstat.
First, maximize the terminal window. Then run vmstat and mpstat for
Romain, red CPU time is related to kernel. In htop you can press F2 and
set display options as shown on the attached screenshot in order to get
more details on kernel threads. (Press Esc to go back to process list.)
** Attachment added: "htop_setup.png"
https://bugs.launchpad.net/ubuntu/+sourc
Romain, could you install htop and run the htop command from command
line to see what process is causing high CPU usage?
Maximize the terminal window, start htop and sort processes by CPU% (F6,
then choose PERCENT_CPU).
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Prajna, what version is your linux kernel? (Run "uname -a")
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https://bugs.launchpad.net/bugs/657990
Title:
System freeze when i'am not moving the mouse or typin
** Changed in: linux
Importance: Undecided => Unknown
** Changed in: linux
Status: New => Unknown
** Changed in: linux
Remote watch: None => Linux Kernel Bug Tracker #20172
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Renzo, I'm surprised with your report as in Natty the bug was fixed for me and
I didn't have to use the nomodeset option.
In Natty I have the following packages:
$ dpkg -l | grep -i xserver-xorg-video-ati
ii xserver-xorg-video-ati1:6.14.0-0ubuntu4.1
X.Org
I've found out that the problem was caused by KMS disabled for radeon driver -
see more on
https://bugs.freedesktop.org/show_bug.cgi?id=38792
** Bug watch added: freedesktop.org Bugzilla #38792
http://bugs.freedesktop.org/show_bug.cgi?id=38792
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** Attachment added: "output of lspci -vv"
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/802186/+attachment/2181882/+files/lspci-vv.txt
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https://bugs.launchpad
** Attachment added: "/var/log/Xorg.0.log"
https://bugs.launchpad.net/bugs/802186/+attachment/2181881/+files/Xorg.0.log
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https://bugs.launchpad.net/bugs/802186
Title:
aft
Public bug reported:
On a system with a Sapphire ATI Radeon HD 4350 512MB DDR2 PCI-E HDMI/DVI-I/VGA
card I upgraded from
Ubuntu Desktop 10.10 64-bit (with Linux 2.6.35-30-generic #54-Ubuntu SMP Tue
Jun 7 18:41:54 UTC 2011 x86_64) to
Ubuntu Desktop 11.04 64-bit with Linux 2.6.38-10-generic #44-Ub
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