QuantumATK Forum

QuantumATK => General Questions and Answers => Topic started by: acruzpr on February 1, 2017, 20:33

Title: VNL Crash: OpenGL Error
Post by: acruzpr on February 1, 2017, 20:33

Hi:

I was using VNL and it crash when I opened the Builder with the following error:

OpenGL Error: invalid enumerant
Segmentation fault

What could be the problem?
How to solve it?

Any help will be greatly appreciated!!

Thanks!




Here is my system information:
System: OpenSUSE 12.1
OS: Linux 3.1.10-1.29-desktop x86_64
KDE: 4.7.2 (4.7.2) "release 5"


Virtual NanoLab - Atomistix ToolKit - Version 2016.3
======================================================
System information
===================
Build: 2016.3.7eb51b6
Platform: Linux
Python 2.7.11
Qt 5.5.0
PyQt 4.11.4

OpenGL information
===================
Vendor: NVIDIA Corporation
Renderer: GeForce 9500 GT/PCIe/SSE2
Version: 3.3.0 NVIDIA 340.101
Shading language version: 3.30 NVIDIA via Cg compiler

License information
====================
Source: Network
Path: localhost
Expiration Date: Perpetual
Version: 16.0

Title: Re: VNL Crash: OpenGL Error
Post by: Jess Wellendorff on February 2, 2017, 14:32

Try to turn off shaders in the VNL Properties tab. Does that help ?

Title: Re: VNL Crash: OpenGL Error
Post by: acruzpr on February 3, 2017, 14:15

Hi Jess!

Thanks but the shaders were off all the time... 
What else can I try?

Regards

Title: Re: VNL Crash: OpenGL Error
Post by: Jess Wellendorff on February 7, 2017, 09:06

I discussed the issue with our developers, and it seems we previously had issues with the NVIDIA driver you are using (140.101). Updating to the 367.x NVIDIA drivers resolved the issue. Can you update your driver? It seems that openSUSE 12.1 has not been maintained for a while, but perhaps the newest NVIDIA drivers are available nonetheless?

Title: Re: VNL Crash: OpenGL Error
Post by: rollyng on April 12, 2017, 10:18

Quote from: Jess Wellendorff on February  7, 2017, 09:06

I discussed the issue with our developers, and it seems we previously had issues with the NVIDIA driver you are using (140.101). Updating to the 367.x NVIDIA drivers resolved the issue. Can you update your driver? It seems that openSUSE 12.1 has not been maintained for a while, but perhaps the newest NVIDIA drivers are available nonetheless?

Hi Jess,
I would like to report the same problem with VNL 2016.4 on my old macbook with GeForce 9400M graphic and Ubuntu 14.04.
The latest nvidia driver for this old graphic chip is  340.102 and 367.x driver does no support the 9400M.
The solution I found is to disable the shader, File>Preference>Graphic>uncheck the shader option, but it still crash Builder on complex model of more than 100 atoms. A few atoms less than 10 works.
However, with VNL 2015.1, it produce some warning with shader enabled but it does not crash the Builder.
Will shader be backward compatible with 9400M graphic in the future release? I am forced to stick to VNL 2015.1 at the moment.
Thanks,
Rolly

Title: Re: VNL Crash: OpenGL Error
Post by: Petr Khomyakov on April 12, 2017, 14:16

Could you post a snapshot of the "About VNL & ATK" information on your mac? Just go to 'Help' in the VNL menu, and click on 'About VirtualNano Lab' to get the information required. 

It would also be of great help if you could provide an output of the command "glxinfo". Please enclose a text file with the output to your post.

Title: Re: VNL Crash: OpenGL Error
Post by: Anders Blom on April 17, 2017, 04:02

Somewhat unrelated, but it's not a good idea to run VNL under sudo