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

[Utkarsh Ayachit]

Dennis,

Don't mean to distract this conversation -- I'll let Chuck follow  up
on the VNC thing -- but a a small sidetrack:

Can you trying running paraview as:

> paraview --mesa-llvm

Does that work?

Utkarsh

On Wed, Apr 13, 2016 at 12:12 PM, Dennis Conklin
<dennis_conklin at goodyear.com> wrote:
> Chuck,
>
>
>
> This is what I get – none of this means anything to me!
>
>
>
> Dennis
>
>
>
>
>
> Xlib:  extension "NV-GLX" missing on display "alnx031:15.0".
>
> OpenGL vendor string: Mesa project: www.mesa3d.org
>
> OpenGL renderer string: Mesa GLX Indirect
>
> OpenGL version string: 1.2 (1.5 Mesa 6.4.1)
>
> OpenGL extensions:
>
>
>
> From: Chuck Atkins [mailto:chuck.atkins at kitware.com]
> Sent: Wednesday, April 13, 2016 11:56 AM
> To: Dennis Conklin <dennis_conklin at goodyear.com>
> Cc: ParaView Mailing List <paraview at paraview.org>
> Subject: Re: [EXT] Re: [Paraview] v5.0.1 & RealVNC
>
>
>
> 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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