[vdr] vdr-xine, changing priority of the receiver when connected

Hi,

Sorry if it's a trivial question (or a non-sense one), i'm wondering how I could change the priority of the receiver when xine is connected to vdr-xine. (i may not be using the correct vocabulary)

In fact i'd like to resolve some priorities issues. I'm running 2 vdr instances, both with vdr-xine; one is accessing the dvb devices and running streamdev-server, the other one just running streamdev-client. I'd like streamdev-server not to take over vdr-xine when xine is connected to vdr. I thought i could do that playing priorities. Could you give a little explanation on how i could do that ?

TIA.