Comment 67 for bug 389519

Is anyone else seeing this,
https://bugzilla.redhat.com/show_bug.cgi?id=710191
Is the resolution of this issue, anyway related to this.

fedora-15 2.6.38.8-32
xorg-x11-server-Xorg-1.10.2-1.fc15.x86_64

Upon using randr to create a screen larger than the monitor,
the mouse pointer is stuck in the original area.

try
  xrandr --fb 1600x1200 --output LVDS --mode 1280x800 --panning 1600x1200
and
  xrandr --fb 1280x800 --output LVDS --mode 1280x800 --panning 1280x800
to restore.