[FreeNX-kNX] Screen Re-Draw Problem

[Reto Buerki]

nobody has a clue what could possibly be the problem? I tested the whole
  scenario again with the new release of freenx  (thanks for the great
work!!!!) and it's exactly the same. so the problem must be on the
client side...

any help or hints are much appreciated!

Reto Buerki wrote:
> Hi list
> 
> I have a specific question about how screen redrawing is handled by NX
> (or Xserver in general).
> 
> The actual problem that we have is that the screen is not properly
> re-freshed on the client after switching to a text console and back. The
> user has to actually move the mouse around to make the screen refresh
> itself ...
> 
> we use the !M nxclient 2.1 and nxserver 2.1. The nxclient and it's
> associated Xserver is running in a special jail. the Xserver is  patched
> and runs as non-root. the nxserver is normally installed on a debian
> testing machine.
> 
> The same combination works great when the client is started "normally",
> let's say from an ubuntu workstation. So the problem must be the
> hardened jail...
> 
> Could someone explain how screen refreshing works? I need to understand
> the theory behind it so that I can solve our problem. Or does someone
> have an idea what could be the cause of this behavior? How or when is
> the screen re-drawing triggered?
> 
> Many thanks in advance
> - reto
>