Removing compiz did not solve the problem for me. As a workaround, disabling DRI in xorg.conf seems to allow a user to log in normally. Compiz will not work in this case and rendering is noticeably slower. My graphics card is:
Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 03) I believe this has been traced to a bug in the xorg intel driver and needs to be fixed upstream. -- [gutsy, hardy, intrepid] Blank screen and (EE) intel(0): overrun on pipe B! on i945GM using intel driver https://bugs.launchpad.net/bugs/221119 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs