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. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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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