Information for others who may run into similar problems:
model:
AeroBook 13.3''
Core™ m3-6Y30
8GB+256GB × 1
After installing Linux (arch) and running into problems with terminal apps and emacs I finally discovered, that my unit has enter configured as KP_enter (keypad enter). Not so pretty but effective hack for xorg → put
xmodmap -e "keycode 104 = Return"
into .xprofile, or execute then line in terminal in xorg (you need to have xmodmap installed).
Other peculiarities on the keyboard settings:
- Fn + right shift works as numlock key
- Top row works primary as F* keys and other with Fn, except F12 which works as F12 with Fn
- Powering on requires holding the Power Button for ~3s