I flashed Ubuntu 21 Server to an SD Card with the Mac Raspberry Pi flashing application and it appeared to be successful. I inserted the SD card into the Pi and connected it to a power source. I am displaying my Pi through an HDMI capture cable in an app on my Android smartphone. I have used it before with Raspberry Pi OS and it displays. However, nothing is displayed for Ubuntu.
Does Ubuntu need special configuration to display through HDMI?
Will it be possible for me to set that up on the Mac, seeing as I won't be able to on the Pi itself without any display?