DRI-related development happens on several channels, but the main one is #dri-devel on OFTC, with other channels for more specific things, like #intel-gfx.

A list of nicks of devs on these channels can be found on WhosWho.

End-user Support

The #dri-devel channel on OFTC is for DRI-specific user problems. If you have issues with downloading, building, or configuring the DRI (that aren't covered in Download, Building, or ?DriTroubleshooting), #dri-devel is the place to ask. Conversely, if you're good at fixing DRI compilation or configuration problems, you are encouraged to join #dri-devel and answer questions.