I suspect that the interesting question is how QT interacts with Clutter / OpenGL(ES) not how it interacts with X.   I see a swing away from X, not an integration with it, in all the upcoming dominant platforms.   That said, a native embedded QT stack is an interesting 'head' and, providing good test cases etc.


On 28 June 2010 08:44, Alexandros Frantzis <> wrote:
On Sun, Jun 27, 2010 at 11:34:21AM +0200, Loïc Minier wrote:

>  Is there a X11 server which can run (perhaps windowed) under QWS?  This
>  would be great for compatibility with X apps.  Something like
>  Xephyr/Xnest perhaps?

The GUI part of all applications that run under QWS must be written in
pure Qt. Unfortunately, I don't know of such an X11 server.

The whole Qt/QWS environment is really targeted for special purpose
systems with strict memory constraints that run dedicated UIs. It is not
designed to be able to interact with other GUI toolkits and

There is a very old (but still relevant) discussion about this issue:

The bottom line is that if there is a need for both Qt and general X11
support in a resource-constrained environment, the only feasible way is
to use Qt/X11 over a lightweight X11 server (eg KDrive).


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David A Rusling
CTO, Linaro