Zapping the Xorg server

Glynn Clements glynn at
Thu Aug 26 09:04:45 PDT 2010

Wolfgang Draxinger wrote:

> Which brings me to something I always wondered about: Why is there no X
> pendant for screen (or I'm not aware of it)? I.e. some proxy X server,
> opening an additional display passing through X transparently, keeping
> record of prerequisite resources.

Because it's ridiculously difficult.

> And make this proxy de-/attachable.
> So far I emulated such using Xvnc, but that means no HW acceleration,
> no indirect GLX and such things. Of course such a thing boils down to
> implementing an almost fully featured X server, so if I were to
> implement such a thing, I'd probably start of kdrive/Xephyr.

It's actually harder than a fully-featured X server. A normal X server
knows what hardware it's dealing with, and the hardware doesn't change
while it's running. A proxy has to deal with the case where it
disconnects from one server and connects to one with completely
different parameters.

Glynn Clements <glynn at>

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