[kubuntu] How does one get steam game running in x screen 1

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http://ubuntuforums.org – Trine 2 runs fine on display 0. How does one get it to run on the projector which is display 1? I'm not a script writer but the following code starts Trine 2 on display 0. Code: #!/bin/sh # Run Trine 2 game on display :0.1. # put the mouse to display 1. `xwit $ARGS -root -warp 520 1080` cd "/home/theatre/.steam/steam/SteamApps/common/trine 2" export DISPLAY=:0.1 sh ./bin/trine2_bin_starter.sh # put the mouse back. `xwit $ARGS -root -warp 520 540` I'm running the separate x screen option under nvidia x server settings in Kubuntu 12.04. Not quite sure what I'm doing, hint (Hardware)