When I try to run application which uses OpenGL installed or built with Nix package manager, GLX errors shows up:
$ /nix/store/p6fwy23nfcadxr4i780knajvmzga17aa-glxinfo-8.1.0/bin/glxinfo
libGL error: failed to open drm device: No such file or directory
libGL error: failed to load driver: r600
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast
X Error of failed request: GLXBadContext
Major opcode of failed request: 156 (GLX)
Minor opcode of failed request: 6 (X_GLXIsDirect)
Serial number of failed request: 50
Current serial number in output stream: 49
Best Answer
In Nix mesa is patched to search drivers in
/run/opengl-driver
directory.Install mesa-noglu:
and create symlink