I executed:

  sudo dconf reset -f /org/compiz

Now changing settings in CompizConfig Settings Manager (ccsm) has no effect. For example, changing the number of desktops has no effect. I tried purging and reinstalling ccsm but it didn't help.

Incidentally, where is the documentation for this sort of thing (which documentation specifies where Unity and Compiz store config settings?)? And where does dconf store things? And where is dconf's documentation? http://dag.wieers.com/home-made/dconf/dconf.1.html says nothing about the 'reset' command, and it says it stores things in /var/log/dconf, but nothing was there. Are there two things named 'dconf'?

I would actually like to just put things back to where they were before I executed sudo dconf reset. I have a backup of my hard drive available, I just need to know which files to rollback. I tried rolling back the .config, .gconf, and .cache directories, to no avail.

I'm using 12.04.