While working on the Little Luggable, I've tried out a number of different Linux distributions for the Raspberry Pi, including different flavours of Manjaro, an Arch Linux based distribution.

Unfortunately, the images available through the Raspberry Pi Imager aren't correctly configured to use the 'official' Touch Display. This results in some fun visual effects followed by static vertical lines on the screen when, presumably, the OS stops driving the display. They look something like this:

Fortunately, in the case of the Manjaro distributions, the solution seems to be a fairly simple addition to config.txt:

display_auto_detect=1

While I was at it, I also updated cmdline.txt to set console=tty1 to ensure I always get console output.