Can't pair Logitech K810 using GUI

Bug #1219560 reported by Jean-Pierre Rupp
This bug affects 5 people
Affects Status Importance Assigned to Milestone
bluez (Ubuntu)

Bug Description

I cannot pair the Logitech K810 keyboard to my computer using the graphical interface provided by Ubuntu. Whenever I try I get two possibilities:

1. The GUI will show me a password, which I must type in the keyboard. After typing the password and pressing ENTER, the pairing will fail.

2. The GUI will hang for about a minute, and then fail to pair.

The only way I can successfully pair the keyboard is by looking at the output of hcidump -at while attempting pairing, and finding a line of output displaying the password that I must type, then typing that in the keyboard. The procedure I follow for successful pairing can be seen in this URL:

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: bluez 4.101-0ubuntu8b1
ProcVersionSignature: Ubuntu 3.8.0-29.42-generic
Uname: Linux 3.8.0-29-generic x86_64
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: amd64
Date: Sun Sep 1 21:53:01 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-08-28 (4 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
InterestingModules: rfcomm bnep btusb bluetooth
MachineType: LENOVO 3444F9U
MarkForUpload: True
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-29-generic.efi.signed root=UUID=5b0c5bf2-37c0-451d-92f0-fe37adfd382f ro quiet splash vt.handoff=7
SourcePackage: bluez
UpgradeStatus: No upgrade log present (probably fresh install) 02/04/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: G6ET93WW (2.53 )
dmi.board.asset.tag: Not Available 3444F9U
dmi.board.vendor: LENOVO
dmi.board.version: Win8 Pro DPK TPG
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrG6ET93WW(2.53):bd02/04/2013:svnLENOVO:pn3444F9U:pvrThinkPadX1Carbon:rvnLENOVO:rn3444F9U:rvrWin8ProDPKTPG:cvnLENOVO:ct10:cvrNotAvailable: 3444F9U
dmi.product.version: ThinkPad X1 Carbon
dmi.sys.vendor: LENOVO
 hci0: Type: BR/EDR Bus: USB
  BD Address: F4:B7:E2:CD:AB:EE ACL MTU: 1021:8 SCO MTU: 64:1
  RX bytes:591 acl:0 sco:0 events:38 errors:0
  TX bytes:2162 acl:0 sco:0 commands:38 errors:0

Revision history for this message
Jean-Pierre Rupp (xenog) wrote :
Revision history for this message
Jean-Pierre Rupp (xenog) wrote :

File captured while the GUI hung for about a minute, and then failed to pair the keyboard.

Revision history for this message
Jean-Pierre Rupp (xenog) wrote :

Previous comment contained an attempt to pair that failed. The GUI did not display a password to type on the keyboard, but the file registered one, as evidenced in this line:

2013-09-01 21:54:09.899971 > HCI Event: User Passkey Notification (0x3b) plen 10
    bdaddr 00:1F:20:*:*:* passkey 662178

If I had typed that passkey by looking at the contents of the dump while the GUI was attempting to pair, I would have been able to successfully complete the pairing.

Revision history for this message
Frank Feuerbacher (drw06g0w7-frank) wrote :

Same problem with Logitech K760 on 12.10 & 13.04.

Also, I notice that the keyboard randomly looses its connection (sometimes in one day, sometimes a week, typically every 2-3 days). When this happens I have to manually delete the keyboard using the gnome-gui and repeat the steps outlined above and at:

In looking for a bug report I found a number of reports on different versions of Ubuntu. I suspect it has been here for a while and most people give up trying to use bluetooth for a keyboard.

Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in bluez (Ubuntu):
status: New → Confirmed
Revision history for this message
Jean-Pierre Rupp (xenog) wrote :

I do not have the problem in message #4

Revision history for this message
Tim Chen (timchen119) wrote :


For people who has this keyboard (logitech K810 or logitech K760 ),

can you help me to test the packages mentioned in

I've got an HP keyboard has the same issue and provided a fix, if the result is positive I'll send an SRU to Trusty. (Ubuntu 14.04)

Revision history for this message
Jean-Pierre Rupp (xenog) wrote :

It works on Ubuntu 15.04.

Revision history for this message
Konrad Zapałowicz (kzapalowicz) wrote :

This is reported against an old version of Ubuntu and many things has changed since then. Because of that we won't fix this issue however if this behavior repeats on a modern version please fill a bug report against it and we will take it from there.

Changed in bluez (Ubuntu):
status: Confirmed → Invalid
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