Comment 68 for bug 296167

Me too. Ubuntu 8.10, Nvidia 177, Xinerama. Like JP, I prefer to have one of my displays rotated CW 90 degrees.

I switched to Twinview yesterday and haven't seen the problem since switching. Before that I was having to restart my X server every 1-2 hours because of this bug.

I can reliably trigger the problem by using x11vnc or vino to share my Xinerama desktop with another computer. After exiting the vnc viewer on the other computer, the mouse would move but no clicks would register. The workaround is to put the mouse cursor at the farthest right edge of the virtual desktop before exiting the vnc client. If you do this, you can usually avoid triggering the bug.

There's a possibly-relevant bug which I thought was due to vnc but is actually probably due to this Xinerama bug: when operating my Xinerama desktop remotely using a vnc client, I could not click anywhere on my first display (the rotated one). Only clicks in the second screen would register. I could move the mouse cursor to the first screen, but I could not interact with anything on that display.