Hi, i’m running latest Manjaro version on my NUC6i7KYK in my home theater. I have my pc connected to Sony STR-DN1040 amp over HDMI, with video being pass thru to my TV. When i select stereo output over HDMI 2 front speakers work perfectly, but when i try to use 5.1 audio over HDMI i get no audio at all. I tried rebooting my PC and also amp, but it doesn’t help. With my Lenovo Legion Y540-15IRH (also running Manjaro) everything works fine out of the box.
Seems to have been a known issue with that NUC even on Windows according to this 8-year old Reddit post.
I don’t know if “this is a known issue and a fix is in the works” ever came to anything. Perhaps it was fixed in a BIOS update?