Fix Steam not working on Arch Linux and Arch based Distro (Manjaro, Antergos, etc..)
This problem appears with the open source drivers
If you're stuck with a DRI 3 error after the first step, launch steam with this variable:
LIBGL_DRI3_DISABLE=1 steam
then you should be able to continue and follow the other steps :)
check my blog post here:
https://manerosss.wordpress.com/2016/...