X11 server on dreambox dm500 ?

[sphinx2010]

Hi all,

I have ported X server on dm500 dreambox
I configured the X server to talks to framebuffer directly.
But when i run any example of X server, eg. xclock on dreambox
The image quality is very bad .
I know dm500 use framebuffer in 8 color depth mode to display OSD.
But how dm500 display channel tv signal. That require configure framebuffer in truecolor !!

How can i display my X examples in truecolor mode ?

Regards,
SPHiNX