PowerButton does not initiate shutdown

A short press of the power button should initiate a shutdown/poweroff on x86_64 platforms and this does not happen when using alpine-extended-3.13.6-x86_64 and alpine-extended-3.14.2-x86_64. (Prior versions alpine-extended-3.11.12-x86_64 and alpine-extended-3.12.8-x86_64 work properly and a short press of the power button initiates a 'poweroff').

To reproduce issue install alpine-extended-3.14.2-x86_64 to USB stick, configure to run from RAM using setup-alpine. Briefly pressing the power button does not initiate a poweroff.

To temporarily work round the issue until properly fixed a script in /etc/local.d could be used to remove the 'tiny_power_button' driver then remove and re-add the 'button' driver and then restart the acpid service:

#!/bin/sh
# Fix Power Button Event Handling
# Remove 'tiny_power_button' driver to stop it catching the event when PWR button pressed
# Delete and re-add 'button' driver to allow it to handle PWR button event
modprobe -r tiny_power_button
modprobe -r button
modprobe button
service acpid restart