I tried everything, changing resolution, forcing HDMI output, pi auto login. Nothing seems to work. Using Raspberry Pi 4. (Version 11.3, bullseye 64bit OS)
11 Answer
If you are using a recent version of Raspberry Pi OS you should be able to enable VNC and set a resolution for headless VNC connections via raspi-config. If that does not work then you seem to have broken something by experimenting.