[X2Go-User] High performance OpenGL issues

Robert GRASSO rgrasso at altair.com
Mon Mar 6 18:33:52 CET 2017


Thanks.

I found what seems to be a satisfying workaround, disabling the access to the Nvidia-provided libGL.so through

export LD_LIBRARY_PATH=/usr/lib64

thus using the system-provided libGL.so, which is what seems to be done on VSphere with the virtual graphic "vmware" driver.

At least I am able to run the software I want to run - I need a more detailed opinion from a coworker, but from what I can see the workaround seems to be satisfying.


Robert Grasso | System engineer
T +33 (0)4 56 38 08 33 | F +33 (0)4 56 38 08 30

rgrasso at altair.com | www.altair.com 
Altair | Innovation Intelligence ® 





> -----Original Message-----
> From: Walid MOGHRABI [mailto:w.moghrabi at servicemagic.eu]
> Sent: Monday, March 06, 2017 6:16 PM
> To: Robert GRASSO
> Cc: x2go-user at lists.x2go.org
> Subject: Re: [X2Go-User] High performance OpenGL issues
> 
> This is normal since there is no proper GL support in X2Go (through lib-nx) by now.
> This is a work in progress from the Arctica team by now but not completed yet.
> 
> 
> Regards,
> Walid Moghrabi
> 
> TRAVAUX.COM
> BAT I - PARC CEZANNE 2 290 AVENUE GALILEE - CS 80403
> 13591 AIX EN PROVENCE CEDEX 3
> 
> ----- Mail original -----
> 
> De: "Robert GRASSO" <rgrasso at altair.com>
> À: x2go-user at lists.x2go.org
> Envoyé: Lundi 6 Mars 2017 16:40:01
> Objet: [X2Go-User] High performance OpenGL issues
> 
> 
> 
> Hello,
> 
> I am trying to have high-performance OpenGL graphics in X2go, from a modeling software : it is based
> on Jogl; for instance, you can rotate objects in the GUI. I am having issues.
> 
> I am using :
> - X2go client 4.0.5.1 on Windows 7
> - X2go server v 4.0.1 on RHEL 6 with KDE
> 
> When I start the software on a physical machine with RHEL 6 and an updated NVIdia driver, on the
> physical screen, it works perfectly.
> When I start the software on the physical machine but with the display in the X2go client, the
> software crashes almost immediately
> Strangely, when I start the software on a virtual machine running RHEL 6 inside Vsphere, with the
> display either in the console or X2go, it works perfectly.
> 
> So I assume that it may be related to other libraries brought in by the driver.
> I already figured out that I can work around the libGL.so from NVidia, if I add to the environment :
> 
> export LD_LIBRARY_PATH=/usr/lib64
> 
> In this way, the software uses the system's libGL.so, I can see it with ldd /usr/bin/glxinfo
> 
> Unfortunately, this is not sufficient. Does anybody have a solution ? or a hint ?
> 
> Best regards
> 
> R. Grasso
> 
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