https://bugs.freedesktop.org/show_bug.cgi?id=82455
--- Comment #16 from Michel Dänzer michel@daenzer.net --- (In reply to comment #15)
Basically first try to get the most simple use case working, e.g. X with just glxgears.
The simplest app I used for the initial radeonsi driver bringup was the Mesa demo egltri_screen.