Actually, I have some more information. This is with a multimonitor setup: laptop and external VGA. The external monitor was set to on and the laptop display turned to off. I now think this may be an issue triggered, at least, by gnome-power-manager. Screensaver is set to blank, but the timeout for powering off the display is shorter. When I lock the screen and is powers off, this issue does not occur. When the screen is powered off by the inactivity timeout, the laptop screen is reactivated upon the subsequent power on and the gnome-panels appear there. This is annoying and disruptive, especially for a still-supported LTS release.
My workaround is to bring up a terminal by pressing Ctrl-Alt-T, and invoking my dirty fix: $ cat /usr/local/bin/mmfix #! /bin/sh set -e set -u set -x # fix for multimonitor setup on ubuntu lucid xrandr --output VGA1 --auto --right-of LVDS1 xrandr --output LVDS1 --off -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-panel in Ubuntu. https://bugs.launchpad.net/bugs/712687 Title: gnome panels disappear for no apparent reason To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-panel/+bug/712687/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
