On 10/4/11 11:02 PM, Eric Appleman wrote: > Imagine I have a laptop with 2 GPUs. An Intel one connected to the LVDS, > VGA, and HDMI. And an Nvidia one connected to no physical output. > > Each GPU has its own X server. The Intel one (:0) is the primary one and > runs the visible desktop. The Nvidia one (:8) is started and stopped as > needed. > > What I'd like to do is the following: > > 1. Start the app on the invisible Nvidia desktop. Let it render here, on > that screen instead of the Intel one. VDPAU in particular does not > permit rendering on the Intel screen. > DISPLAY=:8 mplayer -vo vdpau file > > 2. Dump the already rendered window from :8 and display on :0 > vglrun magic > > Is this possible? I looked into Xpra; it provides better performance > numbers, but the framerate makes it unusable.
I really wonder about all of these laptops people are buying with the nVidia chip not connected to a display port. What is supposed to be the purpose of that? The short answer to your question is: no, it's not possible. VirtualGL doesn't transport any pixels except the rendered 3D pixels. It relies on X11 for everything else. Also, VirtualGL only understands the GLX and OpenGL APIs, and it only knows when to send a frame based on particular calls that are made to that API. If an application, such as mplayer, is not using GLX or OpenGL, then VirtualGL would never know when to send the frames generated by that application. What you'd really need in order to accomplish the above would be another type of faker that understands the vpdau API. Not exactly a generic solution, that. ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity and more. Splunk takes this data and makes sense of it. Business sense. IT sense. Common sense. http://p.sf.net/sfu/splunk-d2dcopy1 _______________________________________________ VirtualGL-Users mailing list VirtualGL-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtualgl-users
