It is possible udev rules are broken. You might be able to identify
source of this power button events by checking keyboard scancode (with
evtest) and/or workaround this by removing the power button assignment
or assigning it to something else

== get scancode ==
 * run "sudo apt install evtes"
 * run "evtest" and select your keyboard
 * try to duplicate your issue
  * identify the trigger of the power button

== Modify keymap ==
 * cd /lib/udev/hwdb.d/
 * edit keymap file (60-keyboard.hwdb)
 * add a change, ex KEYBOARD_KEY_81=f20 # mic mute
 * run "sudo udevadm hwdb --update"
 * reboot


There are some online examples for modifying hwdb files such as 
https://askubuntu.com/questions/499252/my-custom-udev-hwdb-rule-doesnt-work

-- 
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/1926527

Title:
  "Power off" dialog appears when any three keyboard keys are pressed
  quickly

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Fresh 21.04 install on a fresh Asus G713QR-HG016. Gnome desktop,
  Spanish language.

  I first noticed the bug while typing, but I can reduce it to this:
  when three keyboard keys are pressed fast enough (and it doesn't need
  to be really fast, I'm not a fast typist), the "Power off" dialog
  appears, announcing that the system is shutting down automatically in
  60 seconds.

  It doesn't happen pressing the same key three times quickly. It
  doesn't happen either keeping a key pushed. It needs to be at least
  two different keys. Typing "aaa" really fast doesn't trigger the bug.
  Typing "off" or "any" does.

  This happens even when there is no text field in the focus. I can
  trigger it pushing keys in the desktop.

  Of course, this renders the system unusable for me.
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu65
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  pete       1570 F.... pulseaudio
   /dev/snd/controlC2:  pete       1570 F.... pulseaudio
   /dev/snd/controlC1:  pete       1570 F.... pulseaudio
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  DistroRelease: Ubuntu 21.04
  InstallationDate: Installed on 2021-04-28 (0 days ago)
  InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
  MachineType: ASUSTeK COMPUTER INC. ROG Strix G713QR_G713QR
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=es_ES.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 amdgpudrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-16-generic 
root=UUID=8a599a27-c957-4af8-a0a1-3e3635010326 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 5.11.0-16.17-generic 5.11.12
  RelatedPackageVersions:
   linux-restricted-modules-5.11.0-16-generic N/A
   linux-backports-modules-5.11.0-16-generic  N/A
   linux-firmware                             1.197
  Tags:  wayland-session hirsute
  Uname: Linux 5.11.0-16-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 12/30/2020
  dmi.bios.release: 5.19
  dmi.bios.vendor: American Megatrends International, LLC.
  dmi.bios.version: G713QR.308
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: G713QR
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No  Asset  Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.ec.firmware.release: 0.41
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInternational,LLC.:bvrG713QR.308:bd12/30/2020:br5.19:efr0.41:svnASUSTeKCOMPUTERINC.:pnROGStrixG713QR_G713QR:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnG713QR:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.family: ROG Strix
  dmi.product.name: ROG Strix G713QR_G713QR
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu65
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  pete       1570 F.... pulseaudio
   /dev/snd/controlC2:  pete       1570 F.... pulseaudio
   /dev/snd/controlC1:  pete       1570 F.... pulseaudio
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  DistroRelease: Ubuntu 21.04
  InstallationDate: Installed on 2021-04-28 (0 days ago)
  InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
  MachineType: ASUSTeK COMPUTER INC. ROG Strix G713QR_G713QR
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=es_ES.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 amdgpudrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-16-generic 
root=UUID=8a599a27-c957-4af8-a0a1-3e3635010326 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 5.11.0-16.17-generic 5.11.12
  RelatedPackageVersions:
   linux-restricted-modules-5.11.0-16-generic N/A
   linux-backports-modules-5.11.0-16-generic  N/A
   linux-firmware                             1.197
  Tags:  wayland-session hirsute
  Uname: Linux 5.11.0-16-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 12/30/2020
  dmi.bios.release: 5.19
  dmi.bios.vendor: American Megatrends International, LLC.
  dmi.bios.version: G713QR.308
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: G713QR
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No  Asset  Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.ec.firmware.release: 0.41
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInternational,LLC.:bvrG713QR.308:bd12/30/2020:br5.19:efr0.41:svnASUSTeKCOMPUTERINC.:pnROGStrixG713QR_G713QR:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnG713QR:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.family: ROG Strix
  dmi.product.name: ROG Strix G713QR_G713QR
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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