This looks like it might be racey. Doing: killall gnome-panel
*sometimes* brings back the panel (rather than displaying it, but the panel not responding). However doing: strace -p `pidof gnome-panel` immediately after killing the previous panel, allows the panel to start successfully; possibly the ptrace was slowing it down sufficiently. -- gnome panels are empty (show nothing) after login https://launchpad.net/bugs/47602 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs