i also have problems with displayport
when boot the machine, cloldboot or reset, the screen text when boot systemd turns freeze, but the system still booting in background. after a minute (for make sure the machine is booted), binded typping my login/password, and then launch “startwayland” (my wayland session launcher script), the display recover and my desktop appears
the same thing when halt/poweroff. after logount the session, the display become black, do things, and then shutdown
this happen with kernel 6.0.2-arch1-1. and 520.61.05 drivers. the bootlog/journalctrl is out of nvidia driver errors
greetings