Thanks for the information. I am now able to run 2 X servers and run a GLX
application simultaneously on each X server via VGL. The trick is to add
the "-sharevts" option to one of the X servers. FWIW, I'm using Xorg-1.1.1.
On Fri, Apr 26, 2013 at 4:10 PM, DRC <dcomman...@users.sourceforge.net>wrote:
> This has nothing to do with VirtualGL. If there are two X servers
> running and you are able to successfully run GLX apps on both
> simultaneously, then VGL will "just work" as long as you set VGL_DISPLAY
> properly. However, getting two X servers running and being able to
> successfully run GLX apps on both simultaneously is the trick, and
> AFAIK, the current hardware-accelerated 3D drivers from nVidia, etc.
> don't allow it. There may be other O/S-level things that disallow it as
> well. But then again, even though I'm the developer of VGL, I am
> actually not the foremost expert on using it in a multi-card
> environment, so others on the list may be able to provide a better answer.
>
> DRC
>
>
> On 4/26/13 2:28 PM, Kevin Van Workum wrote:
> > I know how to setup two graphics cards with a single x-server with two
> > screens (one screen for each card) and address them via VGL_DISPLAY. But
> > I'm wondering why this is the only way to use 2 cards on a single host.
> > For example, VGL doesn't work when there are 2 x-servers with one screen
> > each, and each using a different card.
> >
> > Basically I'm trying to setup some sort of access control to each card
> > so that only a single user can use one of the two cards. Using the DRI
> > options "group" and "mode" work fine but affect both cards since there
> > is a single x-server. Do you know of a way to accomplish this type of
> > ACL in VGL? Or even if it is possible?
>
>
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