[Paraview] [EXT] Re: v5.0.1 & RealVNC

[Chuck Atkins]

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 <dennis_conklin at goodyear.com
> 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:chuck.atkins at kitware.com]
> *Sent:* Tuesday, April 12, 2016 6:05 PM
> *To:* Dennis Conklin <dennis_conklin at goodyear.com>
> *Cc:* ParaView Mailing List <paraview at paraview.org>
> *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" <dennis_conklin at goodyear.com>
> 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
>
>
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