compiz freezes with fullscreen firefox

[Herbert V. Riedel]

When compiz is enabled, and firefox is running fullscreen, trying cycling windows via 'alt-tab' causes the X-Server to freeze

also, Xorg.log shows repeatedly

 [mi] EQ overflowing. The server is probably stuck in an infinite loop.

xserver-xorg-video-intel:
  Installed: 2:2.4.1-1ubuntu4
  Candidate: 2:2.4.1-1ubuntu4
  Version table:
 *** 2:2.4.1-1ubuntu4 0
        500 http://hu.archive.ubuntu.com intrepid/main Packages
        100 /var/lib/dpkg/status

[Geir Ove Myhr (gomyhr)]

It would be great if you could also attach your /etc/X11/xorg.conf and the output of `lspci -vvnn`.

[Herbert V. Riedel (hvr)]

I just tried compiz again, and it doesn't freeze anymore, but instead it does a epilepsy inducing flickering when window cycling hits the respective fullscreen application (it's not firefox specific, a fullscreen gnome-terminal has the same effect)

[manishmahabir (manishmahabir)]

same problem here too!
but it does not happen always.
besides switching, screen freezes with 'pick window' effect also which i set from ubuntu tweak.
output of `lspci -vvnn`is attached.

[Jouni Mettala (jouni-mettala)]

Could you please also try to run without any /etc/X11/xorg.conf and let Xorg autodetect your display and video card? Please also attach the /var/log/Xorg.0.log from this attempt. Thanks in advance.

[Bryce Harrington (bryce)]

We're closing this bug since it is has been some time with no response from the original reporter. However, if the issue still exists please feel free to reopen with the requested information. Also, if you could, please test against the latest development version of Ubuntu, since this confirms the bug is one we may be able to pass upstream for help.