Arch Linux

Description:

After upgrading to 5.8, headphone detection stopped working on my laptop (Dell XPS 15 9560).
Reverting to 5.7 causes it to work again.

Additional info:
* core/linux 5.8.arch1-1 to 5.8.5.arch1-1
* using Pulseaudio 13.99.1

Steps to reproduce:
Run Linux 5.7 kernel
run `pulseaudio -vv`
plug in headphones
headphones get detected, pulseaudio reports "D: [pulseaudio] device-port.c: Setting port analog-output-headphones to status plugged"
output switches to headphones automatically.

Update to 5.8 kernel
run `pulseaudio -vv`
plug in headphones
headphones do get detected, but pulseaudio reports "D: [pulseaudio] device-port.c: Setting port analog-output-headphones to status unknown"
output stays on speakers, which are muted as the headphones are plugged in. no sound until I either select headphone output or unplug headphones.

At first I thought it was something about pulseaudio alsa-mixer paths, but after downgrading to 5.7 (due to another bug) it started working fine again. After upgrading to 5.8.5 now it still doesn't work.