Maybe it is a hardware issue. I have found this forum entry:
http://ubuntuforums.org/showpost.php?s=94a6397d6d2d8032f3d29eb219f7c78d&p=4390181&postcount=8
.
Could you please attach the output of lspci -vvnn and your /var/log/Xorg.0.log ?
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New => Incomplete
--
blur and reflection compiz òlugins not working
https://bugs.launchpad.net/bugs/201264
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs