Comment # 205 on bug 66963 from Bryan Quigley

1. (In reply to comment #199)

I've reproduced the hang without X, instead using kmscon.
This causes the graphics hang (can still switch back to the original VT and
kill it though):  /usr/local/bin/kmscon --vt 5 --hwaccel
Booting with dpm off or without --hwaccel doesn't trigger the issue.