Qilz,

If xgl is hogging CPU, then you don't have OpenGL direct rendering
turned on or your driver does not support it. Try the following and see
if you have direct rendering on.

[EMAIL PROTECTED]:~$ glxinfo |grep direct
direct rendering: Yes

If it is "No" and you believe your driver supports it, then enable it on 
xorg.conf
Section "Module"
        Load            "glx"
EndSection
--------------------------------------- 
I have a similar issue where firefox hangs using up max CPU, mostly it happens 
when you right click to open a link on a new window consistently. Has anyone 
experienced this on fresh install of gusty with latest firefox?.

PID USER      PR  NI  VIRT    RES    SHR  S   %CPU  %MEM    TIME+  COMMAND
5679 home   25   0  249m 91m    25m R   97.4     9.1        2:53.94 firefox-bin 
       

-Arul

-- 
firefox and xgl cause 100% CPU
https://bugs.launchpad.net/bugs/145696
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