Re: OpenGL forwarding via ssh session: works on jessie, does not work on stretch

[Simon S <fishpepper@gmail.com>]

Am Sonntag, 2. Juni 2019 15:00:05 UTC+2 schrieb Simon S:
> Hi,
> 
> I have a weird problem with opengl forwarding via ssh.
> I am running debian jessie on my BeagleBone Black (armhf) that I use for my CNC machine by running machinekit.
> Everything works as expected, I even got indirect opengl rendering working when I connect to the BBB using windows.
> 
> Now I tried to upgrade my setup using a more recent stretch based image.
> I am not able to use opengl forwarding on stretch.
> 
> The following test setup:
> (A) linux machine running ubuntu (Nvidia GPU)
> (B) BBB running jessie
> (C) BBB running stretch
> 
> I connect from (A) -> (*) by ssh -X x@host
> 
> When I connect from (A) to (B):
> > export LIBGL_ALWAYS_INDIRECT=1;  glxinfo|head
> name of display: localhost:10.0
> display: localhost:10  screen: 0
> direct rendering: No (LIBGL_ALWAYS_INDIRECT set)
> server glx vendor string: NVIDIA Corporation
> server glx version string: 1.4
> server glx extensions:
> 
> When I connect from (A) to (C):
> > export LIBGL_ALWAYS_INDIRECT=1;  glxinfo|head
> Error: couldn't find RGB GLX visual or fbconfig
> name of display: localhost:10.0
> 
> 
> Did something change from jessie -> stretch concerning x permissions?
> 
> Running plain x apps like xterm works in all cases.
> 
> I installed lxde on (c) and glxinfo/glxgears runs fine under lxde on the BBB.
> 
> Any hints?
> 
> Simon