[Thinlinc-technical] html5 again

[Peter Astrand]

Hi again. The error:

extension "NV-GLX" missing

is not necessary fatal. See for example 
http://www.mail-archive.com/virtualgl-users@lists.sourceforge.net/msg00452.html 
.

Do you get some other error? In general, TurboVNC and TigerVNC (which 
ThinLinc uses) should work the same when it comes to VirtualGL.

Another thing to try might be to disable the software based OpenGL. This 
has been necessary with some buggy AMD drivers. To do that, add 
"-extension GLX" to xserver_args in vsmagent.hconf.

Regards,
Peter


On Tue, 5 Nov 2013, Arie Kruiniger wrote:

> Hi,
>
> Thanks for your reply.
>
> Yes, I already had the proprietary Nvidia driver installed, and got
> rid of the nouveau one. My card is Geforce 525M. VirtualGL is
> configured according to your documentation.
>
> You are correct that the Thinlinc Client program won't run VirtualGL either.
>
> Strangely enough, VirtualGL will run through TurboVNC on a remote machine...
>
> On 5 November 2013 07:38, Peter Astrand <astrand at cendio.se> wrote:
>>
>> Glad to hear that you are making progress, more below:
>>
>>
>>> What ultimately I want to do is use VirtualGL via Thinlinc. So far, no
>>> success at that.  I'm assuming I can use VirtualGL with the HTML5
>>> client, right?
>>
>>
>> Yes, this works. Depending on the browser and platform, the HTML5 client
>> might not be able to provide the same level of framerate as the native
>> client. For example, handling of high latency networks is better with the
>> native client. But it should work. I just did a quick test with the HTML5
>> client against the EU demo system (https://eudemo.thinlinc.com:300/) and the
>> Paraview performance was nice I think.
>>
>>
>>
>>> When I attempt
>>> vglrun glxgears
>>>
>>> I get:
>>> Xlib: nv-glx missing on display.
>>>
>>> I know VirtualGL works on this server because I can use it via a
>>> TurboVNC client on another machine. However, it does not work in the
>>> HTML5 client. Ideas?
>>
>>
>> I don't think this has anything to do with the HTML5 client. Likely, you
>> will get the same error with the native ThinLinc client. Have you followed
>> the instructions on http://www.cendio.com/resources/docs/tag/virtualgl.html
>> ? What kind of graphics card are you using? Please note that with AMD and
>> Nvidia card you typically need to the use proprietary driver.
>>
>> Rgds, ---
>> Peter Astrand           ThinLinc Chief Developer
>> Cendio AB               http://cendio.com
>> Teknikringen 8          http://twitter.com/ThinLinc
>> 583 30 Linkoping        http://facebook.com/ThinLinc
>> Phone: +46-13-214600 http://plus.google.com/112509906846170010689
>


---
Peter Astrand		ThinLinc Chief Developer
Cendio AB		http://cendio.com
Teknikringen 8		http://twitter.com/ThinLinc
583 30 Linkoping	http://facebook.com/ThinLinc
Phone: +46-13-214600	http://plus.google.com/112509906846170010689