Hardware acceleration on PBP

[Luke]

Glxgears runs at ~100fps
However, it also shows

libGL error: failed to create dri screen
libGL error: failed to load driver: rockchip
libGL error: failed to create dri screen
libGL error: failed to load driver: rockchip

Might be worth mentioning:  I'm trying to play it in Chromium on Ayufan's Ubuntu build.

ah, that was worth mentioning. I recently did a lot of work on Chromium and it does need quite a few flags to get full acceleration. This will find its way into the next defaut OS release.