[mdp]

But the real matter, if you want to research into remote desktop for the Onyx, is different: it is assessing why the usb connection crashes under heavy load, and fixing (or working around) that.
A few details: tested x11vnc server + bVNC client on a high end tablet, it works perfectly (maybe RDP would give more the illusion of "local use", but that's really not necessary, just an extra); it would use a peak of 20Mbit and an average of 10Mbit under forced heavy load (peak of 8Mbit and average a bit below that for normal heavy load i.e. playing a movie).*
On an Onyx tablet, "heavy" load may crash the connection, hence I choke it with wondershaper. The i86 was kind of stable with around a 2Mbit choke; the MaxCarta is more flexible, but still unstable towards the 10+Mbit. Thus, full screen refresh - ordinary situations such as scrolling a document - is laggy.
I am not sure about what causes the instabilty.

* Scrolling pages of text (20Mbit peak, 10Mbit average when done continuously) changes comparatively more pixel on the screen than playing a movie (8Mbit).