[I found ccsm in the package: compizconfig-settings-manager]
I have tried both of the suggestions in comments #13 and in #14. Separately, and also both together. Neither option made any difference on my system. I logged out and in again after each change, just in case it matters.
I then tried the 'unity --reset' fix, but this just results in Compiz crashing when it tries to come back up.
[I found ccsm in the package: compizconfig- settings- manager]
I have tried both of the suggestions in comments #13 and in #14. Separately, and also both together. Neither option made any difference on my system. I logged out and in again after each change, just in case it matters.
I then tried the 'unity --reset' fix, but this just results in Compiz crashing when it tries to come back up.