Seegras

Yes. I already wrote that I did test it with STEAM_RUNTIME_PREFER_HOST_LIBRARIES=0 and without (actually even with STEAM_RUNTIME_PREFER_HOST_LIBRARIES=1). Same error. As far as I can see the following happens: vrserver starts...

Nope. CPU is 4 core i5-3570K, GFX is Nvidia GTX 960. And the Error really is 307 and not 306. I think I did get the 306 beforehand, but after...

The opposite would be quite impossible, since nvidia-vulkan-icd depends on libglx-nvidia0 which depends on libglx0-glvnd-nvidia. Anyway, I now made sure I have all the glvnd-versions installed. Can't test right now,...