[Solved] remote desktop session and 3d

milasch · 2013-06-13 12:29:41

Very sorry if this was discussed previously or if this questions have been asked, but I'm struggling a bit to figure thisout. And I've googled, experimented for days and still couldn't get it right.

So my requirement is very simple. I want to develop QML/QT5 applications over a remote desktop session in Linux. QML makes use of hardware 3d acceleration.

I first had a gnome 3.8 I tried set up so that I could work with it remotely. But simple things like opening the "Activities" over VNC would crash Gnome. I tried KDE to no avail and now I'm on xfce, which doesn't use any of the 3D accelerated eye candy so VNC works fine.

However any opengl application I try to run (like QML examples) doesn't work.

I've read about tigervnc and virtualgl, and it didn't work too well. On top of that I would have a hard time having to run the application manually and attach the debugger later to it, it would be to bureaucratic.

Apparently nomachines are eventually gonna come up with nx 4 which will have support to run on top of Gnome 3.8 for example, so I'm hopeful it'll just work with any other "opengl application".

I also tried splashtop, with is ok however i'm stuck with 1024x768 resolutions and this annoying blue flickering of the screen.

Is there any remote desktop alternative out there which enables me to successfully run simple opengl applications? I'm not talking games or anything, but simple applications with shades, glows, etc?

Last edited by milasch (2013-06-13 20:14:32)

kokoko3k · 2013-06-13 15:41:51

If you don't need access to the local display, i'd try with turbovnc + virtualgl

milasch · 2013-06-13 17:43:52

kokoko3k wrote:

If you don't need access to the local display, i'd try with turbovnc + virtualgl

So yeah, your post made me try to compose a response which then I identified I had totally misunderstood the concept of virtualgl. Now I do understand it somewhat and I had been able to set everything up properly. Tada! it works.

I'm using tigervnc + virtualgl, and I can start qtcreator with vglrun, then every process that qtcreator spawns will have 3d support through my vnc connection, which is exactly what I needed.

I did notice that when I had slim setup, virtualgl didn't work. Only when I switched to gdm it did work.

I wonder if I should start writing a wiki page about virtualgl, however my writing abilities suck and I'm not sure if it would create more confusion than help others...

sluckxz · 2013-06-13 18:42:20

When using kde locally and remotely I was able to get a very nice X11 forwarding setup working using commands like 'kate --graphicsystem native' this would start the remote kate using my local X server with my local settings and effects instead of passing some of that through the tunnel (i think). It worked very well for kde apps which were the ones i was having issues with (sluggish). This would produce a near native feel (imo) better than NX or the like. It also worked well enough on cygwinX.

Just a heads up. Not sure if something like this might get you closer to your goal or if it's relevant. Thought it might be though.

Arch Linux

#1 2013-06-13 12:29:41

[Solved] remote desktop session and 3d

#2 2013-06-13 15:41:51

Re: [Solved] remote desktop session and 3d

#3 2013-06-13 17:43:52

Re: [Solved] remote desktop session and 3d

#4 2013-06-13 18:42:20

Re: [Solved] remote desktop session and 3d

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