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[Maeda <maeda1@xxxxxxx>]

The main problem is for sure in the adapter BCM2035  and bluez.

See here : https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/453885

Downgrading to bluez 4.60 is the only solution... Solution that won't
work with the  LTS Trusty. Then, I can't do upgrade to this LTS.

I'm available to test commands and give you logs.

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https://bugs.launchpad.net/bugs/1203565

Title:
  045e:009c [H87-PRO] Microsoft Keyboard Elite for Bluetooth dead keys
  problem

Status in bluez package in Ubuntu:
  New
Status in linux package in Ubuntu:
  Incomplete

Bug description:
  In Precise with 4.60 version of bluez I can pair my keyboard and mouse
  perfectly.

  === The problem is that dead keys of my keyboard (I mean -L or R-
  CTRL, ALT, SUPER, -L or R- SHIFT, ALT-GR) doesn't work with my current
  motherboard (whether application I opened, console included). It does
  work correctly with other motherboards. The new motherboard is an 1150
  Haswell one from Asus.

  What I can say is :
  1/ When booting, my BIOS recognize perfectly the dead keys of my keyboard, meaning that the bluetooth dongle or the motherboard is not directly concerned.
  2/ When doing a second installation of Ubuntu, same problem.
  3/ When trying the option 'keyboard layout' (whatever layout I choose), I don't see those dead keys flashing, meaning the system doesn't react at all when pressing them.
  4/ By chance, I found another keyboard (same model, same brand), same problem, meaning the keyboard is not concerned (it works on the older motherboard, then it was poor chance that the keyboard broked just before reinstalling).
  5/ Tried the setxkbmap command (with sudo or without), nothing's better
  6/ Tried the xmodmap command, I see the 0x codes for Left SHIFT, all dead keys are there (see attachment)
  7/ Normal keyboard (no wireless) works perfectly
  8/ Put the dongle on an other usb slot doesn't change anything
  9/ Command xev doesn't makes changes when pressing dead keys.

  For me it's clearly a Ubuntu's system bug, with my motherboard (Asus
  H87-PRO socket 1150).

  ---
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  ApportVersion: 2.0.1-0ubuntu17.3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/pcmC0D0p:   syl        4375 F...m rhythmbox
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Card0.Amixer.info:
   Card hw:0 'PAD'/'RME Digi96/8 PAD at 0xf4000000, irq 19'
     Mixer name	: ''
     Components	: ''
     Controls      : 10
     Simple ctrls  : 6
  Card1.Amixer.info:
   Card hw:1 'NVidia'/'HDA NVidia at 0xf3080000 irq 17'
     Mixer name	: 'Nvidia GPU 14 HDMI/DP'
     Components	: 'HDA:10de0014,10de0101,00100100'
     Controls      : 24
     Simple ctrls  : 4
  Card2.Amixer.info:
   Card hw:2 'NVidia_1'/'HDA NVidia at 0xe3080000 irq 16'
     Mixer name	: 'Nvidia GPU 0a HDMI/DP'
     Components	: 'HDA:10de000a,10de0101,00100100'
     Controls      : 24
     Simple ctrls  : 4
  DistroRelease: Ubuntu 12.04
  MachineType: ASUS All Series
  MarkForUpload: True
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-36-generic root=UUID=d2f8f163-a1ee-4332-a910-d593309cd2a6 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.5.0-36.57~precise1-generic 3.5.7.14
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-36-generic N/A
   linux-backports-modules-3.5.0-36-generic  N/A
   linux-firmware                            1.79.4
  RfKill:
   0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
  Tags:  precise running-unity
  Uname: Linux 3.5.0-36-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm audio bluetooth boinc cdrom dip lp lpadmin netdev plugdev sambashare scanner sudo video
  dmi.bios.date: 04/08/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0501
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: H87-PRO
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Asset-1234567890
  dmi.chassis.type: 3
  dmi.chassis.vendor: Chassis Manufacture
  dmi.chassis.version: Chassis Version
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0501:bd04/08/2013:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnH87-PRO:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
  dmi.product.name: All Series
  dmi.product.version: System Version
  dmi.sys.vendor: ASUS

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