If compositing and desktop effects are enabled I start a fullscreen game (native or wine). When I go out of the game, I see a black screen and a mouse cursor. Windows react mouse and keyboard, but I don't see anything. If I disable compositing by pressing alt+shift+f12, everything goes to norm. If I try to enable it, black screen again. Everything comes to norm after relogin. If compositing is disabled before the game and enabled after it, everything is ok. Reproducible: Sometimes Steps to Reproduce: 1. Enable desktop effects if KDE control center. 2. Play a fullscreen game. 3. Quit the game. 4. Look at the black screen with the mouse cursor. Actual Results: Black screen and cursor. Expected Results: Desktop and applications.
Just for info, have you tried kde-4.5.x?
No reply for two months.
