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) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1852071 Title: [HP ZBook Studio G5, Ubuntu 18.04.3 LTS] Brightness function keys works as microphone mute function keys Status in linux package in Ubuntu: Confirmed Bug description: 1. Press fn+F3. Ubuntu shows "Internal microphone" turned off OSD pop-up. Should turn the brightness down. 2. Press fn+F3 again. Ubuntu shows "Internal microphone" turned on OSD pop-up. Should turn the brightness down. 1. Press fn+F4. Ubuntu shows "Internal microphone" turned off OSD pop-up. Should turn the brightness up. 2. Press fn+F4 again. Ubuntu shows "Internal microphone" turned on OSD pop-up. Should turn the brightness up. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: xorg 1:7.7+19ubuntu7.1 ProcVersionSignature: Ubuntu 5.0.0-32.34~18.04.2-generic 5.0.21 Uname: Linux 5.0.0-32-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.9 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Mon Nov 11 13:23:56 2019 DistUpgraded: Fresh install DistroCodename: bionic DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Device [8086:3e9b] (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Device [103c:8428] InstallationDate: Installed on 2019-04-02 (223 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 138a:00ab Validity Sensors, Inc. Bus 001 Device 002: ID 05c8:0808 Cheng Uei Precision Industry Co., Ltd (Foxlink) Bus 001 Device 004: ID 8087:0aaa Intel Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: HP HP ZBook Studio G5 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.0.0-32-generic root=UUID=d12790df-696c-4d0c-aefa-b0e53712e2ce ro quiet splash vt.handoff=1 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/15/2019 dmi.bios.vendor: HP dmi.bios.version: Q71 Ver. 01.08.00 dmi.board.name: 8427 dmi.board.vendor: HP dmi.board.version: KBC Version 16.3A.00 dmi.chassis.asset.tag: 5CD91018X5 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrQ71Ver.01.08.00:bd07/15/2019:svnHP:pnHPZBookStudioG5:pvr:rvnHP:rn8427:rvrKBCVersion16.3A.00:cvnHP:ct10:cvr: dmi.product.family: 103C_5336AN HP ZBook Studio dmi.product.name: HP ZBook Studio G5 dmi.product.sku: 2YN61AV dmi.sys.vendor: HP version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.97-1ubuntu1~18.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 19.0.8-0ubuntu0~18.04.3 version.libgl1-mesa-glx: libgl1-mesa-glx 19.0.8-0ubuntu0~18.04.3 version.xserver-xorg-core: xserver-xorg-core N/A version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1852071/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp