I found that I have TV connected to S-Video output of my Nvidia videocard.
In that two monitor configuration there is no gnome-panel on both screens.
** Summary changed:
- Gnome-panel not shown in Ubuntu 12.04
+ Gnome-panel not shown in Ubuntu 12.04 if TV is connected
** Tags added: apport-coll
apport information
** Attachment removed: "Dependencies.txt"
https://bugs.launchpad.net/ubuntu/+source/gnome-panel/+bug/1196593/+attachment/3720724/+files/Dependencies.txt
** Description changed:
After latest software update there is no gnome-panel on screen.
ProblemType: Bug
Distro