This question already has an answer here:
The same question has been asked before, but the answers that I found did not work for me, so I'm asking a new question.
I'm the main user and only sudoer on this computer, and everything works for me.
The second user account on this machine for no reason that I can think of, no longer displays the launcher sidebar or top bar, neither does CTRL + ALT + T work. Icons are normally displayed on the desktop (in most other related questions like this the desktop is blank).
So I've found and tried so far:
sudo service lightdm restart
apt-get install --reinstall ubuntu-desktop
apt-get install --reinstall lightdm
- remove files under /home/USER/.config/compiz-1/compizconfig
- starting ccsm from tty to enable unity plugin
unity reset commands return "no display variable set" and "compiz core couldn't open display 0".
When I try to launch unity from tty with
DISPLAY=:0 unity I get the following:
Invalid MIT-MAGIC-COOKIE-1 keycompiz (core) - Fatal: couldn't open display :0
Which sounds like it could be relevant?
How to restore desktop panels?