In the past, defining the screen area you want to map to the tablet was a matter of defining the active rectangle with
topy per device using
In Fedora 15 you only need to set the target screen ID with
MapToOutput. You can learn the display ID by running
xrandr. The tablet devices you get by running
xsetwacom list devices. For my setup I use:
xsetwacom set "Wacom Cintiq 21UX2 stylus" MapToOutput DVI-I-2 xsetwacom set "Wacom Cintiq 21UX2 eraser" MapToOutput DVI-I-2
Hope this helps anyone struggling. This was the TL;DR version, Wacom project documentation is pretty useful.