[PLUG] Firefox and Xorg

Daniel Hedlund daniel at digitree.org
Sun Jul 3 15:28:54 UTC 2011


On Sun, Jul 3, 2011 at 07:41, MJang <mike at linuxexam.com> wrote:
> Folks,
>
> Every now and then, Firefox seems impossible to handle -- I see a thick
> vertical black bar (approx 2" in a 12" wide screen) in the left hand
> side of the screen, and Firefox windows become almost impossible to
> read.
>
> When I switch into a terminal and run the top command, the number one
> user is Xorg, using like 80+% of the CPU. (That's always seemed odd on
> an i7 laptop, but I think that's a different issue.) It is followed
> closely by Firefox at about 10% of CPU.

There appears to have been a bug with fglrx and compiz that caused
behavior similar to what you're describing:
https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/748137

If you're not sure what video driver you're using, check if you have
an ATI video card and then look through your Xorg log file:
$> lspci | grep VGA
$> less /var/log/Xorg.0.log

Let us know what you find.


Cheers,

Daniel Hedlund
daniel at digitree.org



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