My notes on the subject... /usr/bin/nvidia-xconfig -a --use-display-device=none
/etc/X11/xorg.conf Option "UseDisplayDevice" "none" Restrictions Only available on Quadro and Tesla GPUs (there are workarounds for others apparently) OpenGL SyncToVBlank will have no effect. None of Stereo, Overlay, CIOverlay, or SLI are allowed Cheers, Paul -----Original Message----- From: Antony Cleave [mailto:antony.cle...@clustervision.com] Sent: Tuesday, 28 February 2012 12:49 AM To: VirtualGL Users Subject: Re: [VirtualGL-Users] Understanding of VirtualGL I'd define it as an X Server running on a computer with no screen or keyboard attached. On 27/02/2012 13:22, ?? wrote: > Thank you, > > just for clarification. What exactly is a headless X Server? > I have looked for that on the net, but could only find info about that > someone is "using" it, not explaining what it is, > > On Mon, Feb 27, 2012 at 2:00 PM, DRC<dcomman...@users.sourceforge.net> wrote: >> On 2/27/12 6:32 AM, ?? wrote: >>> Hi, >>> I still have some understanding problems about the use of VirtualGL. >>> Does VirtualGL rely on an X server in or can I also use it headlessly? >>> >>> My actual goal is to have a server with no Xorg installed, then run >>> virtualbox headless with a couple of windows machines that have full >>> 3D acceleration. >>> >>> Can this be achieved with VirtualGL? >>> >>> Best wishes >>> ?? >> The answer to both questions is yes. You can use it headlessly, but >> you still have to run an X server on the GPU-- a headless X server. >> Search the archives for several e-mails on how to do this, or maybe >> someone else will chime in with tips. My understanding is that it >> just involves the right edits to xorg.conf to make Xorg not look for a physical display. >> >> There is currently no way to access the GPU except through an X >> server, which is why we have to run one on the server. At one time, >> Sun had a technology called "GLP" that allowed fully headless access >> to a GPU without going through an X server. It used a GLX-like API >> to achieve this. It never made it onto any platform other than >> SPARC, however, and I think nVidia's position is that people should >> just use a headless X server to accomplish the same thing. >> >> --------------------------------------------------------------------- >> --------- Try before you buy = See our experts in action! >> The most comprehensive online learning library for Microsoft >> developers is just $99.99! Visual Studio, SharePoint, SQL - plus >> HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! >> http://p.sf.net/sfu/learndevnow-dev2 >> _______________________________________________ >> VirtualGL-Users mailing list >> VirtualGL-Users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/virtualgl-users > ---------------------------------------------------------------------- > -------- Try before you buy = See our experts in action! > The most comprehensive online learning library for Microsoft > developers is just $99.99! Visual Studio, SharePoint, SQL - plus > HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! > http://p.sf.net/sfu/learndevnow-dev2 > _______________________________________________ > VirtualGL-Users mailing list > VirtualGL-Users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/virtualgl-users ---------------------------------------------------------------------------- -- Try before you buy = See our experts in action! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-dev2 _______________________________________________ VirtualGL-Users mailing list VirtualGL-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtualgl-users ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ VirtualGL-Users mailing list VirtualGL-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtualgl-users
