Basically, when I press Super it looks like this:
As you can see, the Launcher is missing. I have no idea why this happened.
I have already tried the following:
- removing folders:
- reinstalling Unity with
sudo apt-get install --reinstall unity,
- reverting all sidebar settings to defaults in Ubuntu Tweak,
- checking that the Unity plugin is enabled in CCSM (as described here),
- restarting the system.
None of these helped. Do you have any other ideas? How can I find out what happened?