Recently I discovered my laptop no longer sees my HDMI monitor as an audio output option. I tried using a TV as well and the same thing happens, no output option. Both the TV and monitor output sound when used with other devices though. My laptop was working perfectly fine with my monitor speakers recently, maybe a month or two ago (maybe more, I normally use a headset so i'm not 100% sure when this happened).
Here's what I've tried so far:
-Showing disabled and disconnected device in the the sound control panel
-Reinstalling audio drivers
-Full resetting windows (although when I did this I chose a complete reset, it still had some drivers installed and it kept some of my previous data so i'm not sure if there's a better way to do it)
-Restarting windows audio service
I have no idea what else to try, any help at all is much appreciated and i'm happy to supply any info or screenshots that might help!
My laptop is and ASUS ROG Zephyrus M GM501GS with the specs shown here (mine is the GTX 1070 version on the left): https://www.asus.com/us/Laptops/ROG-Zephyrus-M-GM501/Tech-Specs/