Ever since I installed an SSD and fixed my monitor, all forms of audio stopped working in my computer except for bluetooth devices. I’ve tried everything you can find with searching “site:reddit.com” but I’ve found nothing helpful. Please help, I’ll try to answer any questions for more information.
Sounds like you might have shorted out the analog portion while working inside your case. You mentioned other digital methods (like HDMI) work. If you have a connector to a front jack, reversing the pins can fry the audio (been there done that). It’s also possible something accidentally touched and shorted it out.
Most likely you’re gonna end up having to get a USB or other audio card.