I guess this is a duplicate of Bug #155985. Could you please check if glxgears is very slow too? Btw. could you recheck it with the Gutsy Live CD? Maybe it is only a configuration issue.
** Changed in: xserver-xorg-video-intel (Ubuntu) Status: New => Incomplete ** Summary changed: - X11 suddenly became very slow + [Gutsy] X11 suddenly became very slow [i915] -- [Gutsy] X11 suddenly became very slow [i915] https://bugs.launchpad.net/bugs/165034 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs