I have a display wall consisting of 18 monitors connected to three ATI Eyefinity 6 6800 cards. I'm using the ATI proprietary drivers and have setup three Eyefinity display clusters of six monitors each (one connected on each card). Xinerama is turned off, so I essentially get three X displays. This link shows my setup:
When I start X, the cursor is on display :0, but if I move to the right (towards display :0.1), it moves onto :0.2 instead. Once on display :0.2 I can't get it off again, it just wraps around. My only option is to restart X.
Any suggestions as to what the problem may be?