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[Bug 1579190] Re: Key 5 automatically pressed on some Logitech wireless keyboards

 

I'm having the same issue. I'm on Xubuntu 16.04 and using logitech k800.
The only way to stop the issue is by logging out of the desktop. I'll be
trying the patched kernel today. I hope it works.

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https://bugs.launchpad.net/bugs/1579190

Title:
  Key 5 automatically pressed on some Logitech wireless keyboards

Status in linux package in Ubuntu:
  Confirmed
Status in linux source package in Precise:
  Fix Committed
Status in linux source package in Trusty:
  Fix Committed
Status in linux source package in Vivid:
  Fix Committed
Status in linux source package in Wily:
  Fix Committed
Status in linux source package in Xenial:
  Fix Committed

Bug description:
  I have a K520 Logitech keyboard and sometimes something starts to keep pressing key 5.
  It mostly happens when I leave the computer alone for some time, but sometimes also just during regular usage.

  It seems that this is a Linux specific issue as no one is complaining
  about this issue under Windows, but a couple of people are complaining
  for different versions of Ubuntu.

  It is always 5 and WladyXX3740 claims on the Logitech forum that:
  "happens on Ubuntu 15.10 and 16.04, does not happen on Ubuntu 15.04, probably kernel related."

  Here is where most of the people are complaining:
  https://forums.logitech.com/t5/Keyboards-and-Keyboard-Mice/Ubuntu-15-10-and-K520-key-5-automatically-pressed-resulting-in/td-p/1488639

  I discovered that this is related to my Logitech keyboard by running this command:
  xinput test-xi2 --root

  Here is the device list:
  ⎡ Virtual core pointer                    	id=2	[master pointer  (3)]
  ⎜   ↳ Virtual core XTEST pointer              	id=4	[slave  pointer  (2)]
  ⎜   ↳ Logitech K520                           	id=10	[slave  pointer  (2)]
  ⎜   ↳ Logitech M310/M310t                     	id=11	[slave  pointer  (2)]
  ⎜   ↳ AlpsPS/2 ALPS DualPoint Stick           	id=15	[slave  pointer  (2)]
  ⎜   ↳ AlpsPS/2 ALPS DualPoint TouchPad        	id=14	[slave  pointer  (2)]
  ⎣ Virtual core keyboard                   	id=3	[master keyboard (2)]
      ↳ Virtual core XTEST keyboard             	id=5	[slave  keyboard (3)]
      ↳ Integrated_Webcam_HD                    	id=12	[slave  keyboard (3)]
      ↳ Sleep Button                            	id=9	[slave  keyboard (3)]
      ↳ Video Bus                               	id=7	[slave  keyboard (3)]
      ↳ Power Button                            	id=6	[slave  keyboard (3)]
      ↳ AT Translated Set 2 keyboard            	id=13	[slave  keyboard (3)]
      ↳ Power Button                            	id=8	[slave  keyboard (3)]
      ↳ DELL Wireless hotkeys                   	id=16	[slave  keyboard (3)]
      ↳ Dell WMI hotkeys                        	id=17	[slave  keyboard (3)]

  And some extract from the output when this happens:
  EVENT type 2 (KeyPress)
      device: 10 (10)
      detail: 14
      flags:
      root: 449.00/427.00
      event: 449.00/427.00
      buttons:
      modifiers: locked 0x10 latched 0 base 0 effective: 0x10
      group: locked 0 latched 0 base 0 effective: 0
      valuators:
      windows: root 0xf6 event 0xf6 child 0x36000f8
  EVENT type 12 (PropertyEvent)
       property: 308 'Synaptics Off'
       changed: modified
  EVENT type 2 (KeyPress)
      device: 10 (10)
      detail: 14
      flags: repeat
      root: 449.00/427.00
      event: 449.00/427.00
      buttons:
      modifiers: locked 0x10 latched 0 base 0 effective: 0x10
      group: locked 0 latched 0 base 0 effective: 0
      valuators:
      windows: root 0xf6 event 0xf6 child 0x36000f8
  EVENT type 2 (KeyPress)
      device: 10 (10)
      detail: 14
      flags: repeat
      root: 449.00/427.00
      event: 449.00/427.00
      buttons:
      modifiers: locked 0x10 latched 0 base 0 effective: 0x10
      group: locked 0 latched 0 base 0 effective: 0
      valuators:
      windows: root 0xf6 event 0xf6 child 0x36000f8
  EVENT type 2 (KeyPress)
      device: 10 (10)
      detail: 14
      flags: repeat
      root: 449.00/427.00
      event: 449.00/427.00
      buttons:
      modifiers: locked 0x10 latched 0 base 0 effective: 0x10
      group: locked 0 latched 0 base 0 effective: 0
      valuators:
      windows: root 0xf6 event 0xf6 child 0x36000f8
  EVENT type 2 (KeyPress)
      device: 10 (10)
      detail: 14
      flags: repeat
      root: 449.00/427.00
      event: 449.00/427.00
      buttons:
      modifiers: locked 0x10 latched 0 base 0 effective: 0x10
      group: locked 0 latched 0 base 0 effective: 0
      valuators:
      windows: root 0xf6 event 0xf6 child 0x36000f8
  EVENT type 2 (KeyPress)
      device: 10 (10)
      detail: 14
      flags: repeat
      root: 449.00/427.00
      event: 449.00/427.00
      buttons:
      modifiers: locked 0x10 latched 0 base 0 effective: 0x10
      group: locked 0 latched 0 base 0 effective: 0
      valuators:
      windows: root 0xf6 event 0xf6 child 0x36000f8
  ...

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-image-generic 4.4.0.21.22
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  viktor     2133 F.... pulseaudio
   /dev/snd/controlC0:  viktor     2133 F.... pulseaudio
  CurrentDesktop: GNOME
  Date: Fri May  6 20:45:07 2016
  HibernationDevice: RESUME=UUID=67c8171e-474f-4bdb-a2c8-22aead3fb294
  MachineType: Dell Inc. Latitude E5550
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic.efi.signed root=/dev/mapper/system_vg-root_lv ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.4.0-21-generic N/A
   linux-backports-modules-4.4.0-21-generic  N/A
   linux-firmware                            1.157
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/18/2015
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A11
  dmi.board.name: 0JPRM5
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA11:bd11/18/2015:svnDellInc.:pnLatitudeE5550:pvr:rvnDellInc.:rn0JPRM5:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E5550
  dmi.sys.vendor: Dell Inc.

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References