No, not the same display. The 3D X server and 2D X server need to be on different displays. Usually the 3D X server is on :0 if you have just one of them, and the 2D X server is on some other display number.
I would suggest looking at the X server log to see if perhaps the nVidia driver is having difficulty starting up. I personally have no first-hand experience with EC2 instances. I know through user reports that VGL works with them, but I haven't ever actually tested this myself. On 1/10/14 1:55 PM, Stealthy wrote: > > Sounds good. So I’ll just start my X server like usual and point my Xvfb > server to the same display? > > About the Mesa issue below. You see anything abnormal in my xorg.conf > file below? Don’t understand why it’s still using Mesa when it should be > using hardware acceleration through the GPU. > > Thanks for the help guys! > > -- > Desmond > > On Friday, January 10, 2014 at 11:53 AM, Kevin Van Workum wrote: > >> DRC was correct. You need a 3D X server, which is your Xorg X11 >> server. And you need a 2D server; either VNC or Xvfb, not both. If you >> goal is to use Xvfb to capture images, then use Xvfb as the 2D server. >> >> >> On Fri, Jan 10, 2014 at 1:53 PM, Stealthy <stealthmodei...@gmail.com >> <mailto:stealthmodei...@gmail.com>> wrote: >>> Checked my xorg.conf file and the driver is nvidia, see below. >>> >>> Section "Monitor" >>> >>> Identifier"Monitor0" >>> >>> VendorName "Unknown" >>> >>> ModelName "Unknown" >>> >>> HorizSync 28.0 - 33.0 >>> >>> VertRefresh 43.0 - 72.0 >>> >>> Option "DPMS" >>> >>> EndSection >>> >>> >>> Section "Device" >>> >>> Identifier"Device0" >>> >>> Driver "nvidia" >>> >>> VendorName "NVIDIA Corporation" >>> >>> BusID "PCI:0:3:0" >>> >>> EndSection >>> >>> >>> >>> Section "Screen" >>> >>> Identifier"Screen0" >>> >>> Device "Device0" >>> >>> Monitor "Monitor0" >>> >>> DefaultDepth 24 >>> >>> Option"UseDisplayDevice" "none" >>> >>> SubSection "Display" >>> >>> Virtual 1024 768 >>> >>> Depth 24 >>> >>> EndSubSection >>> >>> EndSection >>> >>> >>> Not sure why it’s still using mesa. >>> >>> As to the use of turbovnc this is what I was told when I was setting >>> this up: >>> "VirtualGL needs two X servers-- a "3D X server" and a "2D X server." >>> The 3D X >>> >>> server has to be a real X server attached to the GPU. It can be >>> >>> headless, but it can't be virtual. The 2D X server can be a virtual X >>> >>> server, such as VNC or Xvfb.” >>> >>> >>> Isn’t this true? Are you saying I can just run everything through >>> Xvfb and still have my application run through virtualgl and use the >>> gpu? That would make things quite easier if that is possible. >>> >>> >>> Thanks! >>> -- >>> Desmond >>> >>> On Friday, January 10, 2014 at 3:53 AM, Kevin Van Workum wrote: >>> >>>> It looks like your 3D X server (on :0) is not using the driver for >>>> your card. Make sure the "Device" section of xorg.conf has the >>>> correct driver and BusID specified. Secondly, I don't understand why >>>> you are using turbovnc. If you're trying to do captures with Xvfb, >>>> what's turobvnc for? >>>> >>>> >>>> On Thu, Jan 9, 2014 at 7:36 PM, Stealthy <stealthmodei...@gmail.com >>>> <mailto:stealthmodei...@gmail.com>> wrote: >>>>> Hi guys, >>>>> >>>>> So I am trying to run a 3d application using OPENGL through an EC2 >>>>> server. The ultimate goal being to capture the screen using Xvfb. >>>>> >>>>> I installed virtualgl and turbovnc. when I run >>>>> /opt/VirtualGL/bin/glxinfo -display :0 -c >>>>> >>>>> I get this >>>>> >>>>> name of display: :0 >>>>> >>>>> display: :0 screen: 0 >>>>> >>>>> direct rendering: Yes >>>>> >>>>> server glx version string: 1.4 Mesa 9.2.4 >>>>> >>>>> server glx extensions: >>>>> >>>>> GLX_ARB_get_proc_address, GLX_EXT_texture_from_pixmap, >>>>> >>>>> GLX_EXT_visual_info, GLX_EXT_visual_rating, >>>>> GLX_MESA_copy_sub_buffer, >>>>> >>>>> GLX_MESA_pixmap_colormap, GLX_MESA_release_buffers, >>>>> GLX_SGIX_fbconfig, >>>>> >>>>> GLX_SGIX_pbuffer >>>>> >>>>> >>>>> client glx version string: 1.4 Mesa 9.2.4 >>>>> >>>>> client glx extensions: >>>>> >>>>> GLX_ARB_get_proc_address, GLX_EXT_texture_from_pixmap, >>>>> >>>>> GLX_EXT_visual_info, GLX_EXT_visual_rating, >>>>> GLX_MESA_copy_sub_buffer, >>>>> >>>>> GLX_MESA_pixmap_colormap, GLX_MESA_release_buffers, >>>>> GLX_SGIX_fbconfig, >>>>> >>>>> GLX_SGIX_pbuffer >>>>> >>>>> >>>>> Obviously I don’t want to use Mesa. Do I have to start the X server >>>>> in any specific manner to avoid using the MESA software renderer. >>>>> Did I miss a step. >>>>> >>>>> Thanks for your help guys! >>>>> -- >>>>> Desmond >>>>> >>>>> On Thursday, November 7, 2013 at 10:03 AM, Stealthy wrote: >>>>> >>>>>> Thanks a lot for all the clarification, I’ll definitely spend more >>>>>> time in the manual. This is really helpful, I’ll take another stab >>>>>> at it. >>>>>> >>>>>> Thanks again! >>>>>> >>>>>> -- >>>>>> Desmond >>>>>> >>>>>> On Wednesday, November 6, 2013 at 2:56 PM, DRC wrote: >>>>>> >>>>>>> Yes, you're missing quite a lot. Please read the manual. VirtualGL >>>>>>> needs two X servers-- a "3D X server" and a "2D X server." The 3D X >>>>>>> server has to be a real X server attached to the GPU. It can be >>>>>>> headless, but it can't be virtual. The 2D X server can be a >>>>>>> virtual X >>>>>>> server, such as VNC or Xvfb. >>>>>>> >>>>>>> Secondly, the way you launch a 3D application in VGL is by using >>>>>>> vglrun, >>>>>>> not vglclient. The instructions do not ever even specify calling >>>>>>> vglclient directly. vglclient is generally called from >>>>>>> vglconnect, but >>>>>>> you don't need to ever use either of those unless your 2D X >>>>>>> server and >>>>>>> 3D X server are on different machines (which they aren't.) >>>>>>> >>>>>>> I'll summarize the steps you need to take (but please do read the >>>>>>> manual.) >>>>>>> -- Set up the 3D X server, which should be a "real" X server >>>>>>> connected >>>>>>> to the GPU. Make sure the GLX extension works by running glxinfo >>>>>>> against the 3D X server and verifying that it is not using a >>>>>>> software >>>>>>> OpenGL renderer (Mesa.) >>>>>>> -- Run vglserver_config to give VirtualGL access to the 3D X server >>>>>>> (this is only necessary if the 3D X server is running some sort >>>>>>> of login >>>>>>> manager under the root account, like gdm or xdm. Otherwise, if >>>>>>> you are >>>>>>> just starting the 3D X server under your user account, then you >>>>>>> should >>>>>>> already have permission to access it.) >>>>>>> -- Start Xvfb (the 2D X server.) >>>>>>> -- Set DISPLAY to point to your Xvfb instance. >>>>>>> -- vglrun {application} >>>>>>> >>>>>>> >>>>>>> On 11/6/13 4:21 PM, Stealthy wrote: >>>>>>>> I am not sure I going through the right steps to enable >>>>>>>> virtualgl. Post >>>>>>>> installation I started the Xvfb server with this command: >>>>>>>> >>>>>>>> *Xvfb*:0.0 -screen 0 1280x720x24 -ac +extension GLX +render >>>>>>>> -noreset & >>>>>>>> >>>>>>>> I then started what I think is virtualgl with this command >>>>>>>> expecting any >>>>>>>> opengl application running after that would use the GPU: >>>>>>>> >>>>>>>> /opt/VirtualGL/bin/vglclient >>>>>>>> >>>>>>>> The application still only uses the CPU. >>>>>>>> >>>>>>>> Am I missing something? >>>>>>>> >>>>>>>> Thanks for the help btw. >>>>>>>> -- >>>>>>>> Desmond >>>>>>>> >>>>>>>> On Wednesday, November 6, 2013 at 12:47 PM, DRC wrote: >>>>>>>> >>>>>>>>> "Trouble initializing VirtualGL with Xvfb" tells me nothing. >>>>>>>>> Please be >>>>>>>>> specific as to the error messages you are encountering or what >>>>>>>>> is not >>>>>>>>> working as you expect. >>>>>>>>> >>>>>>>>> >>>>>>>>> On 11/6/13 2:16 PM, Stealthy wrote: >>>>>>>>>> >>>>>>>>>>> Hi guys, >>>>>>>>>>> >>>>>>>>>>> Hope I can get some help on this one. I have an ec2 instance >>>>>>>>>>> running >>>>>>>>>>> using a GPU cluster. I am capturing the Xvfb virtual screen using >>>>>>>>>>> ffmpeg and would like to have my OPENGL enabled application >>>>>>>>>>> use the >>>>>>>>>>> GPU to render. It’s currently rendering everything using the CPU. >>>>>>>>>>> >>>>>>>>>>> I already installed virtualgl but I’m having some trouble >>>>>>>>>>> intializing >>>>>>>>>>> virtualgl with Xvfb and ensure the GPU is being used. Anybody >>>>>>>>>>> could >>>>>>>>>>> help on this? >>>>>>>>>>> >>>>>>>>>>> Thanks in advance >>>>>>>>> >>>>>>>>> ------------------------------------------------------------------------------ >>>>>>>>> November Webinars for C, C++, Fortran Developers >>>>>>>>> Accelerate application performance with scalable programming >>>>>>>>> models. >>>>>>>>> Explore >>>>>>>>> techniques for threading, error checking, porting, and tuning. >>>>>>>>> Get the >>>>>>>>> most >>>>>>>>> from the latest Intel processors and coprocessors. See >>>>>>>>> abstracts and >>>>>>>>> register >>>>>>>>> http://pubads.g.doubleclick.net/gampad/clk?id=60136231&iu=/4140/ostg.clktrk >>>>>>>>> _______________________________________________ >>>>>>>>> VirtualGL-Users mailing list >>>>>>>>> VirtualGL-Users@lists.sourceforge.net >>>>>>>>> <mailto:VirtualGL-Users@lists.sourceforge.net> >>>>>>>>> <mailto:VirtualGL-Users@lists.sourceforge.net> >>>>>>>>> https://lists.sourceforge.net/lists/listinfo/virtualgl-users >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> ------------------------------------------------------------------------------ >>>>>>>> November Webinars for C, C++, Fortran Developers >>>>>>>> Accelerate application performance with scalable programming >>>>>>>> models. Explore >>>>>>>> techniques for threading, error checking, porting, and tuning. >>>>>>>> Get the most >>>>>>>> from the latest Intel processors and coprocessors. 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See abstracts >>>>>>> and register >>>>>>> http://pubads.g.doubleclick.net/gampad/clk?id=60136231&iu=/4140/ostg.clktrk >>>>>>> _______________________________________________ >>>>>>> VirtualGL-Users mailing list >>>>>>> VirtualGL-Users@lists.sourceforge.net >>>>>>> <mailto:VirtualGL-Users@lists.sourceforge.net> >>>>>>> https://lists.sourceforge.net/lists/listinfo/virtualgl-users >>>>>> >>>>> >>>>> >>>>> ------------------------------------------------------------------------------ >>>>> CenturyLink Cloud: The Leader in Enterprise Cloud Services. >>>>> Learn Why More Businesses Are Choosing CenturyLink Cloud For >>>>> Critical Workloads, Development Environments & Everything In Between. >>>>> Get a Quote or Start a Free Trial Today. >>>>> http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk >>>>> _______________________________________________ >>>>> VirtualGL-Users mailing list >>>>> VirtualGL-Users@lists.sourceforge.net >>>>> <mailto:VirtualGL-Users@lists.sourceforge.net> >>>>> https://lists.sourceforge.net/lists/listinfo/virtualgl-users >>>>> >>>> >>>> >>>> >>>> -- >>>> Kevin Van Workum, PhD >>>> Sabalcore Computing Inc. >>>> "Where Data Becomes Discovery" >>>> http://www.sabalcore.com >>>> 877-492-8027 ext. 11 >>>> >>>> ------------------------------------------------------------------------------ >>>> CenturyLink Cloud: The Leader in Enterprise Cloud Services. >>>> Learn Why More Businesses Are Choosing CenturyLink Cloud For >>>> Critical Workloads, Development Environments & Everything In Between. >>>> Get a Quote or Start a Free Trial Today. >>>> http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk >>>> _______________________________________________ >>>> VirtualGL-Users mailing list >>>> VirtualGL-Users@lists.sourceforge.net >>>> <mailto:VirtualGL-Users@lists.sourceforge.net> >>>> https://lists.sourceforge.net/lists/listinfo/virtualgl-users >>> >>> >>> ------------------------------------------------------------------------------ >>> CenturyLink Cloud: The Leader in Enterprise Cloud Services. >>> Learn Why More Businesses Are Choosing CenturyLink Cloud For >>> Critical Workloads, Development Environments & Everything In Between. >>> Get a Quote or Start a Free Trial Today. >>> http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk >>> _______________________________________________ >>> VirtualGL-Users mailing list >>> VirtualGL-Users@lists.sourceforge.net >>> <mailto:VirtualGL-Users@lists.sourceforge.net> >>> https://lists.sourceforge.net/lists/listinfo/virtualgl-users >>> >> >> >> >> -- >> Kevin Van Workum, PhD >> Sabalcore Computing Inc. >> "Where Data Becomes Discovery" >> http://www.sabalcore.com >> 877-492-8027 ext. 11 >> >> ------------------------------------------------------------------------------ >> CenturyLink Cloud: The Leader in Enterprise Cloud Services. >> Learn Why More Businesses Are Choosing CenturyLink Cloud For >> Critical Workloads, Development Environments & Everything In Between. >> Get a Quote or Start a Free Trial Today. >> http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk >> _______________________________________________ >> VirtualGL-Users mailing list >> VirtualGL-Users@lists.sourceforge.net >> <mailto:VirtualGL-Users@lists.sourceforge.net> >> https://lists.sourceforge.net/lists/listinfo/virtualgl-users > > > > ------------------------------------------------------------------------------ > CenturyLink Cloud: The Leader in Enterprise Cloud Services. > Learn Why More Businesses Are Choosing CenturyLink Cloud For > Critical Workloads, Development Environments & Everything In Between. > Get a Quote or Start a Free Trial Today. > http://pubads.g.doubleclick.net/gampad/clk?id=119420431&iu=/4140/ostg.clktrk > > > > _______________________________________________ > VirtualGL-Users mailing list > VirtualGL-Users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/virtualgl-users > ------------------------------------------------------------------------------ CenturyLink Cloud: The Leader in Enterprise Cloud Services. 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