I am also trying to get KSP to run under a separate X instance. I've not gone as far as closing KDM (I'm on Kubuntu 14.04) but having it on a separate X instance would still give a performance boost (and on the laptop I might be able to get that second instance running on the nvidia GPU, a poor man's Optimus). Anyway, I've modified the script from here to try this (see blow) and whilst I do now get the pointer, KSP does not respond to click events. #!/bin/bash #No pointer otherwise xsetroot -xcf /usr/share/icons/DMZ-Black/cursors/left_ptr 8 #Launch in new X server xinit ~/.local/share/Steam/SteamApps/common/Kerbal\ Space\ Program/KSP.x86_64 -- :1 Anyone any ideas?
