I have the same problem. As far as I can tell, when I start gnome- shell, it shuts down gnome-panel normally, and then my X server crashes. My guess is that gnome-shell is using some X features that were previously unused on my computer, and that I have a buggy X server. Is there a good way to test this hypothesis?
Details: I typed: gnome-shell --replace 2>&1 > gnome-shell.log The X server crashes before anything is written to gnome-shell.log. In my .xsession-errors file, two things happen: (1) the gnome-panel shuts down with this message: Panel leaving: a new panel shell is starting. along with lots of noisy gnome-panel messages like: (gnome-panel:22004): Gtk-CRITICAL **: gtk_widget_show: assertion `GTK_IS_WIDGET (widget)' failed (2) all other programs give the following message: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.0. $ lspci | grep VGA 01:00.0 VGA compatible controller: ATI Technologies Inc RV370 5B60 [Radeon X300 (PCIE)] -- gnome-shell crash all https://bugs.launchpad.net/bugs/511124 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-b...@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs -- universe-bugs mailing list universe-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/universe-bugs