Hi,
I was running 15.04 pre-release and at one point unity stopped working. I don't recall messing with anything before it broke.
login is fine and uses my wallpaper.
Openbox and Kodi standalone works fine.
installed gnome and that is not working either.
If I autologin there is just a black screen.
With manual login I get just my wallpaper.
If i run "setsid unity" from terminal Unity starts, but doesn't load my full DE. E.g. the system bar on top is not populated but the launcher works.
The same goes for my guest account, so it is not just my user.
Intel Haswell graphics.
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