Comment 5 for bug 935912

I have a dual-screen setup with two separate screens handled by one nvidia geforce graphics card.

Bug gets triggered when starting playback (mplayer) on second screen in fullscreen mode, then quickly and repeatedly move the mouse from screen one to two and back. When disabling the hardware mouse cursor in xorg.conf, the problem goes away.

dmesg:

[28443.474348] NVRM: Xid (0000:01:00): 16, Head 00000001 Count 00243538

More details at:

https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-input-evdev/+bug/935912