for me it happens also at boot..don't know why but it tries to start gdm instead of lightdm..it gives error and stops booting..then if i execute sudo lightdm it starts without problems and almost everything works (it's still alpha 2)..i found the error executing dmesg.. I upgrade ubuntu from 11.04 to 11.10 about a month ago.. for now I solved it executing in boot Ctrl + Alt + F6 and then sudo lightdm..hope this may help someone with the same problems..
-- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gdm in Ubuntu. https://bugs.launchpad.net/bugs/805154 Title: gdm-simple-slave crashed with SIGSEGV in _nss_compat_getpwnam_r() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gdm/+bug/805154/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs