When I open my session, the wallpaper changed to the default one and I can't change any settings. When it happened for the first time I was running on Ubuntu 13.10, I have upgraded to 14.04 LTS hoping that it would fix the problem, but unfortunately it didn't.
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Where is your desktop wallpaper located? What do you mean you can't change any settings?– PartoApr 21, 2014 at 12:47
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2 Answers
I fixed the problem by deleting the .cache .compiz and .config folders from my home folder.
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Just to confirm that this works. I had the same issue (not being able to change any user settings and few other annoyances). I spent almost entire day trying various things with no success. Deleting .config and .cache folders magically repairs everything. Thank you man.. Aug 6, 2019 at 23:47
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When I encountered this issue it turned out I mistakenly changed the ownership of the "user" file in /home/{my user}/.config/dconf/. Changing the ownership of /home/{my user}/.config/dconf/user back to {myuser}:{my user} fixed the issue, e. g.:
sudo chown dennis:dennis /home/dennis/.config/dconf/user
I figured out where the issue was by tailing /home/{my user}/.cache/upstart/unity-settings-daemon.log while trying to change settings.
(unity-settings-daemon:2157): dconf-WARNING **: failed to commit changes to dconf: GDBus.Error:org.gtk.GDBus.UnmappedGError.Quark._g_2dfile_2derror_2dquark.Code2: Cannot open dconf database: Failed to open file '/home/dennis/.config/dconf/user': Permission denied
