i have this bug too. just started to happen today. i am on 7.04 i386 desktop (running on a file server). the server is headless, so i log in via vnc on screen :1. since today, when i log in to the desktop using vnc, then close the vnc session, the next time i log in, i am not getting back to the desktop where i left it, but to the login screen again. when i close the vnc session, it crashes X and restarts it, with the above error message. therefore i doubt it's a nvidia driver issue. yesterday i installed webmin, but it's unlikely to have anything to do with this.
the other thing i did yesteday was, i found xubuntu-system-tools in the synaptic package manager (i'm using xfce) and installed it, which caused the removal of gnome-system-tools and ubuntu-desktop packages. and in system logs, the x crash error message always appear before the line "gconf is not in use, shutting down". so i believe, the crash is caused by yesterdays auto-removal of gnome-system-tools. i check this out now, will reinstall gnome-system-tools -- gdm_slave_xioerror_handler: Fatal X error https://bugs.launchpad.net/bugs/152648 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
