Additionally I tested "event16", but there was no reaction (doesn't matter if using Fn + key combinations or when using Fn lock):
$ sudo evtest No device specified, trying to scan all of /dev/input/event* Available devices: /dev/input/event0: Sleep Button /dev/input/event1: Lid Switch /dev/input/event2: Power Button /dev/input/event3: Power Button /dev/input/event4: AT Translated Set 2 keyboard /dev/input/event5: Video Bus /dev/input/event6: SynPS/2 Synaptics TouchPad /dev/input/event11: HP Wireless hotkeys /dev/input/event12: HP HD Camera: HP HD Camera /dev/input/event13: HP HD Camera: HP IR Camera /dev/input/event14: SYNA307B:00 06CB:CD46 Touchpad /dev/input/event15: ST LIS3LV02DL Accelerometer /dev/input/event16: HP WMI hotkeys /dev/input/event17: HDA Intel PCH Mic /dev/input/event18: HDA Intel PCH Headphone /dev/input/event19: HDA Intel PCH HDMI/DP,pcm=3 /dev/input/event20: HDA Intel PCH HDMI/DP,pcm=7 /dev/input/event21: HDA Intel PCH HDMI/DP,pcm=8 /dev/input/event22: HDA Intel PCH HDMI/DP,pcm=9 /dev/input/event23: HDA Intel PCH HDMI/DP,pcm=10 /dev/input/event24: MX Master 3 Keyboard /dev/input/event25: MX Master 3 Mouse Select the device event number [0-25]: 16 Input driver version is 1.0.1 Input device ID: bus 0x19 vendor 0x0 product 0x0 version 0x0 Input device name: "HP WMI hotkeys" Supported events: Event type 0 (EV_SYN) Event type 1 (EV_KEY) Event code 138 (KEY_HELP) Event code 141 (KEY_SETUP) Event code 148 (KEY_PROG1) Event code 153 (KEY_DIRECTION) Event code 224 (KEY_BRIGHTNESSDOWN) Event code 225 (KEY_BRIGHTNESSUP) Event code 226 (KEY_MEDIA) Event code 240 (KEY_UNKNOWN) Event code 358 (KEY_INFO) Event type 4 (EV_MSC) Event code 4 (MSC_SCAN) Event type 5 (EV_SW) Properties: Testing ... (interrupt to exit)
Additionally I tested "event16", but there was no reaction (doesn't matter if using Fn + key combinations or when using Fn lock):
$ sudo evtest DOWN)
No device specified, trying to scan all of /dev/input/event*
Available devices:
/dev/input/event0: Sleep Button
/dev/input/event1: Lid Switch
/dev/input/event2: Power Button
/dev/input/event3: Power Button
/dev/input/event4: AT Translated Set 2 keyboard
/dev/input/event5: Video Bus
/dev/input/event6: SynPS/2 Synaptics TouchPad
/dev/input/event11: HP Wireless hotkeys
/dev/input/event12: HP HD Camera: HP HD Camera
/dev/input/event13: HP HD Camera: HP IR Camera
/dev/input/event14: SYNA307B:00 06CB:CD46 Touchpad
/dev/input/event15: ST LIS3LV02DL Accelerometer
/dev/input/event16: HP WMI hotkeys
/dev/input/event17: HDA Intel PCH Mic
/dev/input/event18: HDA Intel PCH Headphone
/dev/input/event19: HDA Intel PCH HDMI/DP,pcm=3
/dev/input/event20: HDA Intel PCH HDMI/DP,pcm=7
/dev/input/event21: HDA Intel PCH HDMI/DP,pcm=8
/dev/input/event22: HDA Intel PCH HDMI/DP,pcm=9
/dev/input/event23: HDA Intel PCH HDMI/DP,pcm=10
/dev/input/event24: MX Master 3 Keyboard
/dev/input/event25: MX Master 3 Mouse
Select the device event number [0-25]: 16
Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x0 product 0x0 version 0x0
Input device name: "HP WMI hotkeys"
Supported events:
Event type 0 (EV_SYN)
Event type 1 (EV_KEY)
Event code 138 (KEY_HELP)
Event code 141 (KEY_SETUP)
Event code 148 (KEY_PROG1)
Event code 153 (KEY_DIRECTION)
Event code 224 (KEY_BRIGHTNESS
Event code 225 (KEY_BRIGHTNESSUP)
Event code 226 (KEY_MEDIA)
Event code 240 (KEY_UNKNOWN)
Event code 358 (KEY_INFO)
Event type 4 (EV_MSC)
Event code 4 (MSC_SCAN)
Event type 5 (EV_SW)
Properties:
Testing ... (interrupt to exit)