Default "from usb-iso" installation using archinstall.
May be recreated by: basic archinstall with environment choice: awesome.
Expected: basic awesomewm launched.
Unexpected (what actually got instead): E: awesome: main:708: cannot open display (error 5)
Tried to find something on the horizons of internet, but got only people with this kind of problem after additional installation of some custom dotfiles, plus (maybe relevant) there was some other numbers instead 708:.
[End of support request].