Comment 40 for bug 1851518

linux-headers-5.8.1-050801_5.8.1-050801.202008111432 and booting with secure boot disabled will not anything. Still no sound, and the command workaround still works.

On a side note, the built-in mic does work as expected. So I use bluetooth headphones for listening and built-in mic for speaking.

PS: John, did you find a way to get the keyboard backlight working ? and are you running on intel or nvidia gpu (in my case nvidia gpu will always freeze the whole computer after ~10-30 minutes of desktop usage) ?