I am using a raspberry pi 4 and I only have an adapter, so it's to big to fit in HDMI 0 is there a way I can make it work with HDMI 0?
A fully updated Raspberry Pi 4 will boot up properly and show the desktop, regardless of which hdmi port was used.
Now I faintly remember this not being the case at some point, but Forum moderator & engineer Jamesh has made it clear:
This rumour just won't die. You only need to use Hdmi zero if you want 4kp60.
I've not seen a way to swap HDMI 0 with 1 but there is a note towards the end of video options in Raspbian that MAY do it.
framebuffer_priority = 7
to config.txt This says HDMI 1 is to be the output of the pre-KMS frame buffer.
Best thing to be honest is hunt an adapter that fits as I have no idea what will happen with application software and future drivers.
Please note I have not tried this (no Pi 4B - had to buy wallpaper) so please let us know if it works.