i screwed up with compiz and tried to enable the "blur windows effect" my computer auto logs onto my name so I never see the login screen itself. because of the blur windows effect, my desktop looks all pretty until i try to do anything. Then it just turns black. so my question is this: "Is there any way to disable the effect or all the effects in compiz through the recovery terminal? i have tried typing "startx" in the recovery terminal but when it pulls up the default desktop my mouse and keyboard stops working so I can't do anythng anyways. any help?
Try renaming the .compiz.save file in your home directory, if there is one, then restarting X.
Also, once you're logged in, try hitting CTRL-ALT-F2 to get to a terminal, log in, then "killall compiz" and "killall compiz.real" to kill the compiz process. CTRL-ALT-F7 should get you back to X, where you should now be able to disable the effects.
Assuming you have "flat-file Configuration Backend" selected to save your preferences and you are using the default profile, you could also modify the line in ~/.config/compiz/compizconfig/Default.ini that says "as_active_plugins" and remove blur from that line. Then when compiz reloads on a reboot it won't load that plugin anymore.