[StarBook MkVI - Intel] Power button triggers no event

[divico]

With the laptop switched on, pressing the power button (even for >3seconds) triggers no event. I've observed this for the first time in Gnome running wayland, none of the possible actions listed in the Power Button Behavior dialogue of Gnome Settings would work.

I could confirm no event is triggered running

evtest
No device specified, trying to scan all of /dev/input/event*
Not running as root, no devices may be available.
Available devices:
/dev/input/event0:  Lid Switch
/dev/input/event1:  Power Button
/dev/input/event10: Intel HID events
/dev/input/event11: PC Speaker
/dev/input/event12: STAR0001:00 093A:0255 Mouse
/dev/input/event13: STAR0001:00 093A:0255 Touchpad
/dev/input/event14: HDA Intel PCH Mic
/dev/input/event15: HDA Intel PCH Mic
/dev/input/event16: HDA Intel PCH Headphone
/dev/input/event17: HDA Intel PCH HDMI/DP,pcm=3
/dev/input/event18: HDA Intel PCH HDMI/DP,pcm=7
/dev/input/event19: HDA Intel PCH HDMI/DP,pcm=8
/dev/input/event2:  AT Translated Set 2 keyboard
/dev/input/event20: HDA Intel PCH HDMI/DP,pcm=9
/dev/input/event21: USB 2.0 Camera: USB Camera
/dev/input/event3:  Logitech USB Laser Mouse
/dev/input/event4:  Lenovo ThinkPad Compact USB Keyboard with TrackPoint
/dev/input/event5:  Lenovo ThinkPad Compact USB Keyboard with TrackPoint
/dev/input/event6:  Sennheiser Sennheiser SC60 for Lync Consumer Control
/dev/input/event7:  Sennheiser Sennheiser SC60 for Lync
/dev/input/event8:  Sennheiser Sennheiser SC60 for Lync
/dev/input/event9:  Sennheiser Sennheiser SC60 for Lync
Select the device event number [0-21]: 1
Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x0 product 0x1 version 0x0
Input device name: "Power Button"
Supported events:
  Event type 0 (EV_SYN)
  Event type 1 (EV_KEY)
    Event code 116 (KEY_POWER)
Properties:
Testing ... (interrupt to exit)
q

I repeated the test running SystemRescue 10.02 from a USB stick with the same outcome.

Can anyone reproduce this ? I'm running coreboot 8.97 and EC 1.19.