Hi Dennis, I suspect the GPU is not getting used by the VNC server and thus falling back to a software OpenGL implementation with older mesa and not a new enough OpenGL support. Different VNC servers on Linux have different capabilities, with some able to reach their underlying GPU and some not. >From your VNC session, can you open up a terminal and run: glxinfo | grep '^OpenGL' ? That should be more telling.
- Chuck On Wed, Apr 13, 2016 at 9:58 AM, Dennis Conklin <[email protected] > wrote: > Chuck, > > > > Sorry, got additional details from the sysops. > > > > We have GPUs in our workstations – he was referring that we don’t have GPU > clusters for computation. I understand that the VNC server is running on > the workstation that I attach to, and yes, we are using the GPU on that > workstation to render. > > > > FYI, the workstations have Nvidia K4000 cards and we are running realVNC > – any chance this is part of your test suite? > > > > Thanks again, sorry for the confusion, but I am NOT a Linux or VNC guru!! > > > > Dennis > > > > *From:* Chuck Atkins [mailto:[email protected]] > *Sent:* Tuesday, April 12, 2016 6:05 PM > *To:* Dennis Conklin <[email protected]> > *Cc:* ParaView Mailing List <[email protected]> > *Subject:* [EXT] Re: [Paraview] v5.0.1 & RealVNC > > > > Sorry, forgot to cc the list. > > Hi Dennis, a few questions: > > Are you using the binaries from paraview.org or did you build it yourself? > Does the machine with the vnc server have a GPU you're trying use? > You said previous versions of paraview worked. Does that include 5.0 and > 4.x or just 4.x? > > On Apr 12, 2016 4:04 PM, "Dennis Conklin" <[email protected]> > wrote: > > All, > > > > So I started testing Paraview v5.0.1 Linux and it doesn’t work with > RealVNC v4, or v5.1.1 or v5.3 (dies with Segmentation fault without even > displaying a screen). Earlier versions of Paraview work but not 5.0.1. I > am not very familiar with VNC. Are there graphics or other options in VNC > that need to be tuned that I could refer to my sysops? > > > > Thanks for any hints. > > > > Dennis > > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Search the list archives at: http://markmail.org/search/?q=ParaView > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/paraview > >
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