ubuntu-x-swat team mailing list archive

[Bryce Harrington <bryce@xxxxxxxxxxxxxxxxxxx>]

Steve, in general high cpu utilization issues are *not* actually bugs in
xorg.  The reason is simply that xorg is a server process, and responds
to demands from client applications.  A wayward client app can make as
much demand from the xserver as it wishes, even if it causes the system
to bog down; as long as xserver doesn't crash or lock up, it's doing its
job.  So when you see high X cpu, the thing to look at is not X but
rather what client apps are running.

In particular, since you see a sudden improvement during shutdown, that
strongly suggests there is some daemon or other process running in the
background that causes the sluggishness, which turns off shortly before
boot.

Look at your process table (`ps aux`) and see what is running.  Try
killing processes one by one (`kill -9 <pid>`) until you locate what's
causing the issue.  You might also boot a livecd and verify that the
high cpu does not occur there, and then compare its process listing with
your installed listing to spot processes specific to your installation.

** Changed in: xserver-xorg-video-intel (Ubuntu)
       Status: Confirmed => Incomplete

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blinking display, high CPU utilization by xorg
https://bugs.launchpad.net/bugs/543808
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