I have a laptop that boots a linux Live-CD and then starts a remote X connection to my desktop machine. The desktop machine has an NVIDIA card with the proprietary drivers running. Because I am connected from a networked display, direct rendering seems to automatically be turned off. It seems to me that one oughta be able to use the NVIDIA card to take care of all the rendering and then send that over the network to the client. Does anyone know if Direct Rendering can be switched on in this case?

I've already looked into VirtualGL but this isn't quite what I'm looking for. In that case, my laptop would have to be running it's own X session and then connect to the VGL server on the desktop machine. I bypass running any sort of Xserver on the laptop (only the client) and want to continue doing so. Any help would be greatly appreciated!