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I have a problem with unity that took me one day to approximatively solve. Approximatively means that it is not convenient and I need to fully fix the problem.

I have bought a viper computer. I installed Ubuntu 14.04. Everything went fine, though I had to install proprietary drivers to have a stable display (otherwise after 5 to 10 minutes the display start to show unreadable things.)

Last Thursday, I ran the (security) update and afterward (on Friday) unity didn't start anymore. I switched to Alt+Ctrl+F1 terminal and tried many things, I also googled my problem.
For instance,

dconf reset -f /org/compiz/ && setsid unity

but this doesn't work (first error is asking for a display, so even running export DISPLAY=:0 before, it gives another error whose content seems to be put in the .Xauthority file of the home folder)

I finally noticed that removing the ~/.Xauthority file and then running a gnome desktop afterward solve partially the problem. I can start unity and recover my usual desktop.
But after each restart my unity desktop still doesn't start and I have to start the gnome desktop.

What is happening with my unity ? Will I manage to have a stable desktop? (It is a professional computer I need something very stable)

Note: I checked with ccsm, unity is activated.
αғsнιη
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Flying-carpet
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  • Did you try removing the `~/.config/compiz-1` directory (as suggested in [achiang's](http://askubuntu.com/a/77789/22949) and [dome cs's](http://askubuntu.com/a/73726/22949) answers to [Unity doesn't load, no Launcher, no Dash appears](http://askubuntu.com/q/17381/22949))? Did you try [installing Unity Tweak Tool and running `unity-tweak-tool --reset-unity`](http://askubuntu.com/a/476656/22949)? If neither of these other possible solutions work (or for some reason you cannot or strongly prefer not to attempt them), I recommend [edit]ing your post with details. (And if one does fix it, great!) – Eliah Kagan Oct 20 '14 at 01:11

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