This message appears when I try to run a game. The game never appears but apparently is still running
This application requires either the GL_EXT_texture_compression_s3tc, o
r the GL_EXT_texture_compression_dxt1 + GL_ANGLE_texture_compression_dx
t3 + GL_ANGLE_texture_compression_dxt5 OpenGL extensions. Please instal
l S3TC texture support.
It occurs to me that perhaps I should tell you that I am using the open source driver not the proprietary Amd driver.
Good find Scott. For future ref you can also check out this github link https://github.com/ValveSoftware/steam-for-linux/issues/4504 as well and this link http://vilaingeek.com/quoi-faire-steam-casse-tumbleweed/ about dealing with errors in steam with tumbleweed.