*** This bug is a duplicate of bug 763005 *** https://bugs.launchpad.net/bugs/763005
In my case, I solved by disbling the "blur" effect in Compiz, nothing else. Driver flgrx, video board Radeon HD 5450, motherboard MSI G31TM-P21, 3Gb RAM. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/768275 Title: Compiz effects slow and laggy on Natty with ATI card -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs