By the way: While I could not get my Dasung Paperlike Colour (Revolutionary) to work with the A311D SoM yet, the Boox Mira does run fine.
I could not convince the A311D to output the display’s native resolution, but unlike the Dasung screen, the Boox Mira supports several input resolutions, and even works with some that are not listed in the monitor’s EDID.
I am currently running it at 1600x1200, with this modeline:
97.68 1600 1680 1848 2096 1200 1201 1204 1227 +HSync +Vsync