iturnedintoanewt OP , 8 months ago

Sigh…Just for the sake of it…It needed to recompile the kernel with the LATEST firmware you needed to download manually. Instructions here: askubuntu.com/…/how-to-make-ubuntu-22-04-work-wit…

I changed the file download to the latest, which at this moment is linux-firmware-20231111.tar.gz. After the update-initramfs, reboot (since I already ran the PPA earlier…to no avail), and this time it worked, and it immediately showed me the second monitor, which had been dead for the last couple of hours since I started fighting this thing.