Comment 3 for bug 256441

want to piggyback on this...as i think my issue is related. when using twinview on multiple displays, if i zoom in (using this same compiz zoom) i often times get "stuck." if i zoom in on my external screen, my laptop screen doesn't zoom in. if i move my mouse to my laptop (unzoomed) screen, the mouse then gets stuck indefinitely, getting reset to the right edge of the screen, making it impossible to unzoom.

so...i can confirm this behavior. if the cursor were unfrozen, the rest of my bug (async zooming) wouldn't be an issue because i could mouse back over to the zoomed in screen and zoom out.