PiBox

An initial try, based on a Manjaro example didn't provide much. First, removing xorg.conf just got me the fbdev driver even though the dtoverlay did load the vc4 driver. Second, X overtook pspslash during boot so you don't see all of the bootsplash progress. Finally, omxplayer plays HDMI audio (analog audio was not tested) but there is no video.

So there would need to be more work to get this installed. I suspect I may need to get mesa support installed which may be more than Buildroot currently offers.

I also didn't verify that /dev/dri/card0 existed. Maybe that needs to be created manually given my setup vs off-the-shelf distros.

I switch to fkms and that allows video to display properly now, with audio through hdmi (analog is still not tested). But when a video completes and the xterm exits to return to the videofe app the display is reduced in size. This may be an issue with using the xterm to launch omxplayer or perhaps it's a general DRM issue related to how I'm running full screen. In any case, this is still only partially working and will need a bit more work before I can switch from the fbturbo X.org driver.