Running Steam on debian 8 64-bit
STEAM_RUNTIME is enabled automatically
Pins up-to-date!
Attempting to create OpenGL context: v3.3 (Core profile)...success.
Attempting to create OpenGL context: v3.3 (Core profile)...success.
DumpContextInfo: OpenGL vendor X.Org
DumpContextInfo: OpenGL renderer Gallium 0.4 on AMD JUNIPER
DumpContextInfo: Using OpenGL context version 3.3
DumpContextInfo: Context supports GLSL version 3.30