Created attachment 134125 [details] [review]
kernel patch: set "high" default DPM level instead of "auto" for 0x67B0/0x67B1
variants

So, I had to wait two hours, but I got the crash on my 0x67B0 variant too. It's
still better than two years ago when it happened some seconds after X spawning,
but it's still there. So I updated my patch to make the trick for these two
variants.