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[gadLinux <950413@xxxxxxxxxxxxxxxxxx>]

Hi Christopher, will try to do it but since I don't use this keyboard
all time it will take me time to do it. Cause I have to switch
environment.

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https://bugs.launchpad.net/bugs/950413

Title:
  0a5c:201e [Lenovo ThinkPad X41] Bluetooth connections stalling

Status in The Linux Kernel:
  Confirmed
Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Description:	Ubuntu precise (development branch)
  Release:	12.04

  bluez:
    Installed: 4.98-2ubuntu4
    Candidate: 4.98-2ubuntu4
    Version table:
   *** 4.98-2ubuntu4 0
          500 http://fi.archive.ubuntu.com/ubuntu/ precise/main i386 Packages
          100 /var/lib/dpkg/status

  lsusb:
  Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
  Bus 004 Device 002: ID 0a5c:201e Broadcom Corp. IBM Integrated Bluetooth IV

  All bluetooth connections seem to stall after certain period of time
  (seen from dmesg) - this alone makes file transfers, etc impossible,
  although there might be other problems too.

  sudo l2ping -s300 D4:88:90:C2:8B:33
  Ping: D4:88:90:C2:8B:33 from 00:14:A4:DC:21:08 (data size 300) ...
  300 bytes from D4:88:90:C2:8B:33 id 0 time 58.62ms
  300 bytes from D4:88:90:C2:8B:33 id 1 time 19.87ms
  300 bytes from D4:88:90:C2:8B:33 id 2 time 18.92ms
  300 bytes from D4:88:90:C2:8B:33 id 3 time 19.93ms
  300 bytes from D4:88:90:C2:8B:33 id 4 time 29.36ms
  300 bytes from D4:88:90:C2:8B:33 id 5 time 18.08ms
  300 bytes from D4:88:90:C2:8B:33 id 6 time 15.73ms
  300 bytes from D4:88:90:C2:8B:33 id 7 time 20.92ms
  300 bytes from D4:88:90:C2:8B:33 id 8 time 17.88ms
  300 bytes from D4:88:90:C2:8B:33 id 9 time 15.92ms
  no response from D4:88:90:C2:8B:33: id 10
  no response from D4:88:90:C2:8B:33: id 11
  no response from D4:88:90:C2:8B:33: id 12
  no response from D4:88:90:C2:8B:33: id 13
  no response from D4:88:90:C2:8B:33: id 14
  Recv failed: Software caused connection abort

  dmesg:
  [ 5787.352443] Bluetooth: hci0 link tx timeout
  [ 5787.352453] Bluetooth: hci0 killing stalled connection D4:88:90:C2:8B:33

  The connection will always stall after 10 rounds. The pinged device is
  Samsung Galaxy S phone. When the same is being pinged from another
  computer, also running Ubuntu, the connection stays stable until
  aborted.

  Noticed exactly similar behavior reported here:
  https://bbs.archlinux.org/viewtopic.php?id=120488 - only common things
  are bluez and Broadcom bluetooth chip.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: bluez 4.98-2ubuntu4
  ProcVersionSignature: Ubuntu 3.2.0-18.28-generic-pae 3.2.9
  Uname: Linux 3.2.0-18-generic-pae i686
  ApportVersion: 1.94.1-0ubuntu1
  Architecture: i386
  Date: Fri Mar  9 01:33:34 2012
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20120306)
  InterestingModules: rfcomm bnep btusb bluetooth
  MachineType: IBM 2525AP5
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-18-generic-pae root=UUID=24998e60-4dee-4c05-829d-2142350617ab ro quiet splash vt.handoff=7
  SourcePackage: bluez
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/14/2006
  dmi.bios.vendor: IBM
  dmi.bios.version: 74ET64WW (2.09 )
  dmi.board.name: 2525AP5
  dmi.board.vendor: IBM
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: IBM
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnIBM:bvr74ET64WW(2.09):bd12/14/2006:svnIBM:pn2525AP5:pvrThinkPadX41:rvnIBM:rn2525AP5:rvrNotAvailable:cvnIBM:ct10:cvrNotAvailable:
  dmi.product.name: 2525AP5
  dmi.product.version: ThinkPad X41
  dmi.sys.vendor: IBM
  hciconfig:
   hci0:	Type: BR/EDR  Bus: USB
    BD Address: 00:14:A4:DC:21:08  ACL MTU: 377:10  SCO MTU: 64:8
    UP RUNNING PSCAN ISCAN
    RX bytes:61317 acl:410 sco:0 events:3834 errors:0
    TX bytes:34007 acl:350 sco:0 commands:3553 errors:0
  mtime.conffile..etc.bluetooth.audio.conf: 2012-03-09T00:08:00.157148
  mtime.conffile..etc.bluetooth.main.conf: 2012-03-09T00:23:05.617638
  mtime.conffile..etc.dbus.1.system.d.bluetooth.conf: 2012-03-08T21:16:48.604399

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