Harry, in accordance to this: https://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-next-4.19-wip&id=1664ee4f0ae984e28409ad1ac83641539781840c if you need a 'guinea pig' on that case please let me know. I have "0" (ZERO) knowledge messing with kernel drivers but with gentoo it is not a big deal for me to play with two kernels and test some (even a bad) code on that machine (mullins/VGA connector). IMHO it could help with other ASICSs also. Thanks, Przemek.