Originally Posted by puru
The problem with changing the keybinding for close window to ctrl+q doesnot work. It actually binds the key q for close window instead of ctrl+q.
I was testing the key bindings and just observed this behavior. Changing the "close window" key binding to Ctrl+Q has unexpected effects. In my case some programs close, others don't. When I reopened ccsm, the key binding was changed to the letter "q", instead of "<Primary>q" as it was before. A bug in compiz? It could be related to the fact that many programs actually use Ctrl+Q by default to close, but that's just a guess.
Anyway, I always use Super+C to close windows, so I've never noticed this before. As a matter of fact, I mostly use the Super key (the windows key) with window manager actions, since most GUI programs use the Ctrl, Ctrl+Shift and Alt combinations as shortcuts.
The problem of freezing everything on changing the animations still persists.
That's harder to find out because it involves many things, the video card you use, driver versions, plugins used, etc. For instance, the Magnifier plugin still crashes my X session, luckily I don't actually use it, but I blame this on my very old and obsolete video card.
My suggestion is to use compiz profiles to isolate your problem. The profiles let you enable some plugins and/or change some settings and save them to a profile (a text file, which can be loaded later). In this way you can systematically enable/disable things to see if it's caused by a combination of settings or plugins. I know, trial and error may not be the best advice, but I'm out of ideas at the moment.
You'll find the profiles in the "Preferences" section in ccsm.