DRM leases + X = SW only OpenGL acceleration on child X server

Raimonds Cicans ray at apollo.lv
Sun Sep 23 21:18:11 UTC 2018


Hi!

I am playing with new "DRM leases" feature.
I am trying to implement single video card multi-seat.

Questions:

1) is HW accelerated OpenGL possible at all on child X server?

2) if answer for first question is "yes", then what can cause following
behaviour?

DISPLAY=:100 glxgears # Main X server. Works without problem

DISPLAY=:101 glxgears # Child X server. Get following errors
libGL error: failed to authenticate magic 1
libGL error: failed to load driver: radeonsi

All commands (X servers / glxgears) are run under root user.

Software versions:
Linux kernel: 4.16.12
libdrm: 2.4.93
xorg-server: 1.20.1
xf86-video-amdgpu: 18.1.0
mesa: 18.1.8



Raimonds Cicans


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