After some trickery that I learned from the answer to this question I, too, managed to install xpra on my Raspberry Pi. I'm able to run graphical applications just fine without xpra, but after I start xpra, nothing works:pi@raspberrypi:~ $ xpra start :10pi@raspberrypi:~ $ Entering daemon mode; any further errors will be reported to:  /home/pi/.xpra/:10.logpi@raspberrypi:~ $ iceweasel &[1] 23660pi@raspberrypi:~ $ MobaXterm X11 proxy: Authorisation not recognisedError: cannot open display: localhost:10.0[1]+  Exit 1                  iceweaselpi@raspberrypi:~ $What could possibly be wrong? I've read about the Authorisation not recognized error and about something called the MIT-MAGIC-COOKIE-1, but everything that I can find concerns running the application as a different user, i.e. after su or sudo, which is not the case here.
Unable to use xpra: Authorisation not recognised
x11;raspberry pi;remote desktop;xpra