OpenGL
From ArchWiki
OpenGL was not working out of the box for me, here is what I did:
make sure your card can handle openGL
put "dri" and "glx" are in your xorg.conf file:
Section "Module"
Load "glx"
Load "dri"
Load "i810"
Load "ddc" # ddc probing of monitor
Load "dbe"
Load "extmod"
Load "bitmap" # bitmap-fonts
Load "type1"
Load "freetype"
Load "record"
It should now work, if it does not, make sure you have the libraries installed. I had to install the package "libgl-dri".