Comment 4 for bug 394300

Thank you for your reply.

However I cannot run those commands on my laptop as I solved the problem by
deleting my Linux partition and installing FreeBSD. The newest version of
FreeBSD happily runs the newest KDE and XOrg on my laptop without incident.

I know there are others who had the same problem with Kubuntu on laptops
with ATI video cards, perhaps someone else will see this and be able to
provide that output for you.

thank you

On Thu, Aug 13, 2009 at 10:48 AM, Bartosz <email address hidden> wrote:

> Please attach your /var/log/Xorg.0.log file.
> If you can from after reproducing this issue.
>
> Attach the output of `lspci -vvnn` command.
>
> --
> Excessive CPU usage after 9.04 upgrade
> https://bugs.launchpad.net/bugs/394300
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in Ubuntu: New
>
> Bug description:
> I recently upgraded my laptop from Kubuntu 8.10 to Kubuntu 9.04. Laptop
> has 2 gbs of ram, 1.6ghz P4m. Ran fine under 8.10; however it is unusable
> in 9.04 due to high CPU usage of XOrg.
>
> When not running any applications beyond what is setup in KDE (as in, no
> web browser, no email, no text editor, no games ...) I find XOrg using 98%
> of my CPU or more. Even Konsole windows are nearly unusable.
>
> I have found that no amount of time seems to resolve this problem, I can
> leave the system on overnight and XOrg will still be at 98% or more. I have
> also found that if I ssh in to the system instead, response is as expected;
> it seems to be driven by the local setup. If I log in locally first, then
> log in from another system while still logged in locally, I can see the
> excessive CPU usage of XOrg. However if I log out locally, leaving the
> system running, I can ssh in and things are normal (XOrg at less than 10%
> CPU).
>
> I have tried reconfiguring xorg.conf via dpkg-reconfigure, that did not
> solve the problem. My current xorg.conf does not have a driver line in it;
> is there a different file that specifies the video driver?
>
>
> -----
> Additional work on the same system has shown that this is almost certainly
> related to the video driver. System has ATI Radeon Mobility graphics. When
> the commercial radeon drivers (as in xorg-driver-fglrx) are installed and
> chosen through xorg.conf, system will boot and allow login, but XOrg stays
> at a near constant 95% of CPU. When installed and not chosen (running VESA
> instead), system does not complete boot process; though is accessible
> remotely via ssh. When uninstalled and using VESA through xorg.conf, system
> does boot and behave normally, however VESA graphics default to 640x480.
>
> Tried doing the same with the "ati" open source drivers, this did not solve
> the problem, rather the same problems observed with the xorg-driver-fglrx
> were seen.
>