Running program in separate X display
It may often be handy to run some program in separate X display. I.e. 3D games for gaining performance, or making alt+tab-style switching possible with ctrl+alt+[F7-F12].
The simplest way would be:
xinit appname -- :10
But if you have ~/.xinitrc in place, you should use full path to app to override it. Also there can be some environment variables and X options to pass. So the smart way would be to pack it all into a wrapper:
#!/bin/bash #test if file exists, otherwise exit which $* 2> /dev/null if [ "$?" != "0" ] ; then echo "No such executable" exit 127 fi # use this display number NEWDISP=":10" # this flag is used for indicating unaccessible or broken DRI. # it is set, for example, when using fglrx+compiz-manager # Some games will refuse to start if it is set. # unsetting it should not do any harm, and can be useful. unset LIBGL_ALWAYS_INDIRECT #main execution line with automatic full path retrieval. xinit `which $*` -- $NEWDISP & #then we set useful parameters DISPLAY=$NEWDISP sleep 1s # disable annoying non-linear mouse acceleration xset m 1 0 # disable hard-coded default 10m screensaver xset s 0 0
General principle: set variables before xinit line, and xset parameters after.
Save it as /usr/bin/xrun
After that launching app in separate X display should be as easy as typing
--Psycho zs 17:03, 1 October 2010 (EDT)