Ubuntu 14.04. I have 2 user accounts. This problems appears only for one of it. I have no more icons on my desktop, neither the launcher, just the desktop picture. Right click still works, so I can access system settings. When using gnome, everything works perfect.
Try changing your screen resloution in system settings to a lower one than currently selected.
I've had such a problem before when using a projector, that could only handle 720p. The settings were 1080p by default and the "overflow" was just cut off, so I could only see the center of the output.
Ty restarting the GDM. To restart GDM, switch to Ctrl+Alt+F1, login, andt ype the command
sudo /etc/init.d/gdm restart
Then when you get the [OK], switch back with Ctrl+Alt+F7.
Try to restart unity Get terminal using ctrl+alt+T Run this command