Debugging a Raspberry Pi video problem
· 3 min read
I was putting Home Assistant OS on a spare Raspberry Pi 4, booting off a USB SSD, with an HDMI capture card plugged into the board so I could watch the boot on my main monitor. I powered it on, console output started scrolling, and about four and a half seconds in the screen went to NO SIGNAL and stayed there. Every boot attempt did the same thing.