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couldn't open display on debian 8 #36

Closed harveyslash closed 7 years ago

harveyslash commented 7 years ago

I am trying to get opengl work for one of my projects. I have done /opt/VirtualGL/bin/vglserver_config then chose all recommended settings

Choose:
1

Restrict 3D X server access to vglusers group (recommended)?
[Y/n]
y

Restrict framebuffer device access to vglusers group (recommended)?
[Y/n]
y

Disable XTEST extension (recommended)?
[Y/n]
y
... Creating vglusers group ...
groupadd: group 'vglusers' already exists
Could not add vglusers group (probably because it already exists.)
... Granting read permission to /etc/opt/VirtualGL/ for vglusers group ...
... Creating /etc/modprobe.d/virtualgl.conf to set requested permissions for
    /dev/nvidia* ...
... Adding vglgenkey to /etc/kde4/kdm/Xsetup script ...
... Adding display-setup-script=vglgenkey to /etc/lightdm/lightdm.conf ...
... Disabling XTEST extension in /etc/kde4/kdm/kdmrc ...

Done. You must restart the display manager for the changes to take effect. then i logged in using vglconnect -x user:pass as described. Then in that same ssh session , i did vglrun glxgears, and it just wont run . This is the output of vglrun +v glxgears : [VGL] Shared memory segment ID for vglconfig: 360448 [VGL] VirtualGL v2.3.2 64-bit (Build 20121002) [VGL] Opening local display :0 Error: couldn't open display 129.21.147.40:0

dcommander commented 7 years ago

It is not necessary to post your question in two places. I will answer it in the first place it is posted. Please refer to my answer on SourceForge.