On Wed, 21 Aug 2019 21:05:20 +0100 Richard Miller <9f...@hamnavoe.com> wrote: > > ba...@bitblocks.com>: > > Trying this on pi4B4GB > > > > - no display > > The display does come up for me (using HDMI0 socket).
It is an early 4k Seiki TV/Monitor. It works fine on a pi3 (running your kernel) in 1440x900 res. On pi4 with 9front, it says "Not support" on the screen so likely some invalid parameter.