Hi Maxim, Thanks again! I was just going to write a message saying that pbuffer does not work either... I am using the svn HEAD so I probably hit the pbuffer bug. Using fbo works indeed.
Sounds like a reasonable thing to automatically create a config and use it on other machines. And also, I needed to specify the actual viewport sizes. What do you think about using the same strategy on Windows (7)? I wonder if I can configure windows so that the 2nd GPU can be addressed while no monitor is attached... Thanks, Raymond Maxim Makhinya wrote: > Hi Raymond, > > I have Ubuntu 9.04. > > You should configure your X server. Here is what glxinfo shows on our > machines: > > $ glxinfo | grep display > name of display: 0:0.0 > display: 0:0 screen: 0 > display: 0:0 screen: 1 > display: 0:0 screen: 2 > display: 0:0 screen: 3 > > We have 2 GeForce 9800 GX2 here, they are shown as 4 devices. > (I just connected all 4 displays once to get proper xorg.conf :) > and then saved it to other machines). > > When actual displays are not connected driver thinks that some > analog display with low resolution is connected (that's why you > need to specify viewports' sizes if you are using full screen mode). > > Also, recently a bug with p-buffers on linux was discovered: > > https://sourceforge.net/tracker/?func=detail&aid=2934387&group_id=170962&atid=856209 > > I'm not sure if you will have it as well, try FBOs otherwise. > > Older versions don't have this problem (I'm using quite old rev. 3335 > in my tests). > > Best regards, > > Maxim Makhinya > > > > On Apr 14, 2010, at 10:22 , Raymond de Vries wrote: > > >> Hi Maxim, >> >> Thnx, using the pbuffer config makes sense. Do I still need to >> configure >> the X server to use the second GPU? When running eqServer with >> 2-pipe.2D.PBuffer.eqc eqPly still exits with this error (and hence >> eqServer is quit): >> "OS Pipe initialization failed: Can't open display: :0.1" >> >> On what platform are you btw? Eventually I want to use Windows (now >> using Kubuntu for testing). >> >> thanks >> Raymond >> >> >> Maxim Makhinya wrote: >> >>> Hi Raymond, >>> >>> You need to use P-Buffer or FBO as a rendering target on your second >>> GPU. >>> >>> Check 2-pipe.2D.PBuffer.eqc in examples/configs. >>> >>> Also you might need to set also a viewport for your second GPU to >>> cover >>> your area. Here is an example from one of my configs: >>> >>> global >>> { >>> EQ_WINDOW_IATTR_HINT_FULLSCREEN ON >>> EQ_WINDOW_IATTR_HINT_DOUBLEBUFFER OFF >>> EQ_WINDOW_IATTR_HINT_DRAWABLE pbuffer >>> EQ_WINDOW_IATTR_PLANES_STENCIL ON >>> EQ_CHANNEL_IATTR_HINT_SENDTOKEN ON >>> } >>> server >>> { >>> config >>> { >>> appNode >>> { >>> pipe >>> { >>> name "pipe0n0" >>> device 0 >>> window >>> { >>> name "window0" >>> attributes >>> { >>> hint_drawable window >>> hint_doublebuffer ON >>> } >>> viewport [ 0 0 2560 1600 ] >>> channel { name "channel0" } >>> } >>> } >>> pipe >>> { >>> name "pipe0n1" >>> device 1 >>> window >>> { >>> name "window1" >>> viewport [ 0 0 2560 1600 ] >>> channel { name "channel1" } >>> } >>> } >>> } >>> compound >>> { >>> ... >>> } >>> } >>> } >>> >>> >>> Best regards, >>> >>> Maxim Makhinya >>> >>> >>> >>> On Apr 14, 2010, at 09:50 , Raymond de Vries wrote: >>> >>> >>> >>>> Hi, >>>> >>>> I'm sorry to ask but it is still unclear how I can use multiple GPUs >>>> while still using 1 monitor. I can succesfully use 2-pipe.2D.eqc to >>>> use >>>> my 2 GPUs for 1 window (on Kubuntu, crashes on Windows 7) when I >>>> use 2 >>>> monitors. But when I use only 1 screen, I cannot use 2-pipe.2D.eqc, >>>> the >>>> server aborts ('unreachable code...'). >>>> >>>> Thanks a lot for your tips & hints. >>>> >>>> Regards >>>> Raymond >>>> >>>> >>>> _______________________________________________ >>>> eq-dev mailing list >>>> [email protected] >>>> http://www.equalizergraphics.com/cgi-bin/mailman/listinfo/eq-dev >>>> http://www.equalizergraphics.com >>>> >>>> >>>> >>> _______________________________________________ >>> eq-dev mailing list >>> [email protected] >>> http://www.equalizergraphics.com/cgi-bin/mailman/listinfo/eq-dev >>> http://www.equalizergraphics.com >>> >>> >> _______________________________________________ >> eq-dev mailing list >> [email protected] >> http://www.equalizergraphics.com/cgi-bin/mailman/listinfo/eq-dev >> http://www.equalizergraphics.com >> >> > > > _______________________________________________ > eq-dev mailing list > [email protected] > http://www.equalizergraphics.com/cgi-bin/mailman/listinfo/eq-dev > http://www.equalizergraphics.com > _______________________________________________ eq-dev mailing list [email protected] http://www.equalizergraphics.com/cgi-bin/mailman/listinfo/eq-dev http://www.equalizergraphics.com
