No video output on Pi OS Bullseye 64 bit

[/RaspberryPi]

I've just installed Pi OS Bullseye to an SD card after using Twister OS for ages, but after the "Welcome to Raspberry Pi OS 64 Bit" screen, output drops completely. I don't have a clue why it's doing this, I've never had this issue before, even with Pi OS Buster. The closest I had was Manjaro detecting the wrong resolution.
I'm running a Pi 4B with 8GB Ram, booting off of a 256GB microSD. Any help is greatly appreciated.
EDIT: So apparently, when I try booting Bullseye over SD, it changes my boot priority to USB, but not on Twister, or my old Buster install.
EDIT 2: That was a fluke, apparently. But the problem remains. I tried plugging it into a HDMI switcher to see if it would detect anything, which it did so the issue is likely software side.

submitted by /u/shoobyluby
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