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[Vasya Pupkin <1523108@xxxxxxxxxxxxxxxxxx>]

After rebooting, backlit returned, but still no reaction on Fn+F2 and no
Bluetooth. This is dmesg after reboot:

$ dmesg | grep -i bluetooth
[    8.795276] Bluetooth: Core ver 2.21
[    8.795292] Bluetooth: HCI device and connection manager initialized
[    8.795295] Bluetooth: HCI socket layer initialized
[    8.795298] Bluetooth: L2CAP socket layer initialized
[    8.795302] Bluetooth: SCO socket layer initialized
[    8.829680] Bluetooth: hci0: read Intel version: 370710018002030d00
[    8.831009] Bluetooth: hci0: Intel Bluetooth firmware file: intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq
[    8.907934] Bluetooth: hci0 sending Intel patch command (0xfc8e) failed (-19)
[    9.293108] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    9.293111] Bluetooth: BNEP filters: protocol multicast
[    9.293116] Bluetooth: BNEP socket layer initialized
[   10.903615] Bluetooth: hci0 command 0xfc8e tx timeout
[   10.903629] Bluetooth: hci0 sending frame failed (-19)
[   10.907603] Bluetooth: hci0: Exiting manufacturer mode failed (-110)

Some more stuff in syslog:

Jan 29 14:42:35 shadow-zenbook systemd[1]: Starting Bluetooth service...
Jan 29 14:42:35 shadow-zenbook bluetoothd[1414]: Bluetooth daemon 5.35
Jan 29 14:42:35 shadow-zenbook bluetoothd[1414]: Starting SDP server
Jan 29 14:42:35 shadow-zenbook kernel: [    8.795276] Bluetooth: Core ver 2.21
Jan 29 14:42:35 shadow-zenbook kernel: [    8.795292] Bluetooth: HCI device and connection manager initialized
Jan 29 14:42:35 shadow-zenbook kernel: [    8.795295] Bluetooth: HCI socket layer initialized
Jan 29 14:42:35 shadow-zenbook kernel: [    8.795298] Bluetooth: L2CAP socket layer initialized
Jan 29 14:42:35 shadow-zenbook kernel: [    8.795302] Bluetooth: SCO socket layer initialized
Jan 29 14:42:35 shadow-zenbook kernel: [    8.829680] Bluetooth: hci0: read Intel version: 370710018002030d00
Jan 29 14:42:35 shadow-zenbook kernel: [    8.831009] Bluetooth: hci0: Intel Bluetooth firmware file: intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq
Jan 29 14:42:35 shadow-zenbook kernel: [    8.907934] Bluetooth: hci0 sending Intel patch command (0xfc8e) failed (-19)
Jan 29 14:42:35 shadow-zenbook kernel: [    9.293108] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Jan 29 14:42:35 shadow-zenbook kernel: [    9.293111] Bluetooth: BNEP filters: protocol multicast
Jan 29 14:42:35 shadow-zenbook kernel: [    9.293116] Bluetooth: BNEP socket layer initialized
Jan 29 14:42:35 shadow-zenbook bluetoothd[1414]: Bluetooth management interface 1.11 initialized
Jan 29 14:42:35 shadow-zenbook systemd[1]: Started Bluetooth service.
Jan 29 14:42:35 shadow-zenbook systemd[1]: Reached target Bluetooth.
Jan 29 14:42:35 shadow-zenbook NetworkManager[1436]: <info>  Loaded device plugin: NMBluezManager (/usr/lib/x86_64-linux-gnu/NetworkManager/libnm-device-plugin-bluetooth.so)
Jan 29 14:42:36 shadow-zenbook kernel: [   10.903615] Bluetooth: hci0 command 0xfc8e tx timeout
Jan 29 14:42:36 shadow-zenbook kernel: [   10.903629] Bluetooth: hci0 sending frame failed (-19)
Jan 29 14:42:36 shadow-zenbook kernel: [   10.907603] Bluetooth: hci0: Exiting manufacturer mode failed (-110)
Jan 29 14:42:36 shadow-zenbook systemd[1]: bluetooth.target: Unit not needed anymore. Stopping.
Jan 29 14:42:36 shadow-zenbook systemd[1]: Stopped target Bluetooth.

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https://bugs.launchpad.net/bugs/1523108

Title:
  Bluetooth doesn't work on ASUS Zenbook UX301LAA

Status in linux package in Ubuntu:
  Triaged

Bug description:
  It's not possible to make bluetooth work. Pressing Fn+F2 doesn't
  change anything. Sometimes a grey (inactive) bluetooth icon appears
  but disappears instantly after attempt to turn it on.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: linux-image-4.2.0-21-generic 4.2.0-21.25
  ProcVersionSignature: Ubuntu 4.2.0-21.25-generic 4.2.6
  Uname: Linux 4.2.0-21-generic x86_64
  ApportVersion: 2.19.1-0ubuntu5
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  shadowlmd   2409 F.... pulseaudio
   /dev/snd/controlC1:  shadowlmd   2409 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Sat Dec  5 18:03:20 2015
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=4443577b-ebf9-4f35-bd95-660448592ddb
  InstallationDate: Installed on 2015-10-22 (43 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
  MachineType: ASUSTeK COMPUTER INC. UX301LAA
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-21-generic.efi.signed root=UUID=e7df807f-bc9b-4cdf-85ae-38b8a3c6f016 ro quiet splash rootfstype=ext4 vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-4.2.0-21-generic N/A
   linux-backports-modules-4.2.0-21-generic  N/A
   linux-firmware                            1.149.3
  SourcePackage: linux
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/05/2015
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: UX301LAA.211
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: UX301LAA
  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.modalias: dmi:bvnAmericanMegatrendsInc.:bvrUX301LAA.211:bd06/05/2015:svnASUSTeKCOMPUTERINC.:pnUX301LAA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX301LAA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.name: UX301LAA
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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