Comment 20 for bug 1128348

I have the same behaviour than comment #19. For some weird reason unity plugin is being disabled from config in some updates (for me it happens from libunity6 to libunity7 in Ubuntu Saucy Salamander).

I can enable again the unity panels installing compizconfig-settings-manager (ccsm), but I try to figure out what exact files changes ccsm for maybe use the right commands and avoid the GUI for do this each time. So I fired with:

strace -eopen cssm

Then I see that the config files being touched after enable Unity plugin are:

/run/user/1000/dconf/user
/home/username/.config/dconf/user
/home/username/.cache/compizconfig-1/unityshell.pb
/usr/share/compiz/unityshell.xml

So likely one of that files is being overwritten in package updating. Also it makes sense the dconf trick because it maybes reset one of that files.