I have a desktop and a laptop both with Ubuntu (Ubuntu 10.04.3 LTS) on board. I installed OpenSSH server on desktop and now I'm able to connect to this from my laptop (also running Ubuntu) by typing
ssh -X
this allows me to run programs on the desktop and display their windows on the laptop.
I'm wandering if it is also possible to run GDM on the desktop and display and control it by the laptop, so that if there is e.g. an update notice I see it, etc.? I'm not talking about the normal remote desktop which sends screenshots, because it's too slow.