High CPU usage with Desktop effects enabled

[Nigel Ridley]

Jaunty i386 - up-to-date as of Sat. 4th April.
Dell Inspiron 1525 with an Intel GM965 chipset with an X1300
graphics card. The 'low' %CPU 7 to a 'high' %CPU 13, is with Desktop effects enabled (just the
default ones) and with the Desktop effects turned off, Xorg gives a 'low' of %CPU 2 and a 'high'
of %CPU 6 .

I'm sure that with desktop effects turned off Xorg's CPU usage should really be near zero.

nigel@nigel:~$ ubuntu-bug -p xorg
Usage: /usr/bin/ubuntu-bug <pid>|<packagename>|<program path>|<.crash file>
nigel@nigel:~$ apt-cache policy xorg
xorg:
  Installed: 1:7.4~5ubuntu18
  Candidate: 1:7.4~5ubuntu18
  Version table:
 *** 1:7.4~5ubuntu18 0
        500 http://il.archive.ubuntu.com jaunty/main Packages
        100 /var/lib/dpkg/status
nigel@nigel:~$

[Bryce Harrington (bryce)]

Hi nigel-rmk,

Please attach the output of `lspci -vvnn`, and attach your /var/log/Xorg.0.log (and maybe Xorg.0.log.old) file from after reproducing this issue. If you've made any customizations to your /etc/X11/xorg.conf please attach that as well.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Nigel Ridley (nigel-rmk)]

Bryce Harrington wrote:
> Hi nigel-rmk,
>
>
> Please attach the output of `lspci -vvnn`, and attach your /var/log/Xorg.0.log (and maybe Xorg.0.log.old) file from after reproducing this issue. If you've made any customizations to your /etc/X11/xorg.conf please attach that as well.
>
> [This is an automated message. Apologies if it has reached you
> inappropriately; please just reply to this message indicating so.]
>
>
> ** Tags added: needs-xorglog
>
> ** Tags added: needs-lspci-vvnn
>
> ** Changed in: xorg (Ubuntu)
> Status: New => Incomplete
>

Hi,

As requested -- attached files.
This after this morning's updates.

Blessings,

Nigel

[Bryce Harrington (bryce)]

A cpu load of %13 doesn't sound abnormally high. I'm not convinced this is actually a bug, without some better evidence.

[Nigel Ridley (nigel-rmk)]

Bryce Harrington wrote:
> A cpu load of %13 doesn't sound abnormally high. I'm not convinced this
> is actually a bug, without some better evidence.
>
> ** Package changed: xorg (Ubuntu) => compiz (Ubuntu)
>
> ** Changed in: compiz (Ubuntu)
> Importance: Undecided => Low
>
> ** Changed in: compiz (Ubuntu)
> Status: Incomplete => Invalid
>

I have turned Desktop Effects off and am still seeing relatively high Xorg CPU usage - between
%CPU 3 - %CPU 10. On average (watching 'top' for about 5 minutes) it moves around the %CPU 5-9 mark.

On my wife's Dell Vostro laptop (a very similar system to my Inspiron) running Hardy, her Xorg
via 'top' shows an average of %CPU 1. So there must be something amiss.
Should I open a separate bug report (without reference to Desktop Effects)?

Blessings,

Nigel