Just trying x2go on fedora 20.
Starting a kde session, the display size is ignored. It takes the entire
display. xdpyinfo reports:
screen #0:
dimensions: 1920x1200 pixels (423x264 millimeters)
resolution: 115x115 dots per inch
The physical screen is (local X):
screen #0:
dimensions: 1680x1050 pixels (371x232 millimeters)
resolution: 115x115 dots per inch