Comment 4 for bug 217798

The arguments for Xephyr and Xnest appear to be mostly the same.

The call that tsclient makes is:
 Xnest :1 -once -geometry 1024x768 -query 127.0.0.1

The equivalent Xephyr call is:
 Xephyr :1 -once -screen 1024x768 -query 127.0.0.1

I'd not be surprised if there are other parameters that tsclient sends with different options. I've created a tiny bash script which substitutes geometry with screen.

To make this work, place the script in /usr/bin as Xnest (making sure you rename Xnest first (I use Xnest.bin)