Hi,
I've recently install kUbuntu 15.10, and bluetooth worked out of the box. But at some point (probably after installing updates)
it is no longer detecting (when scanning) any devices.
I have found a similar bug report here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552925,
but the package linked there did not work (probably due to me using ath9k, not ath3k module) - the bluetooth card was not detected, and in dmesg were messages about failing to load firmware.
$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 13d3:3472 IMC Networks
Bus 001 Device 002: ID 04f2:b52b Chicony Electronics Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
$ uname -a
Linux AsusX 4.2.0-35-generic #40-Ubuntu SMP Tue Mar 15 22:15:45 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
$ inxi -N
Network: Card-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller driver: r8169
Card-2: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter driver: ath9k
$ usb-devices | awk '/3472/' RS=
T: Bus=01 Lev=01 Prnt=01 Port=07 Cnt=02 Dev#= 3 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=13d3 ProdID=3472 Rev=00.01
C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA
I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-35-generic 4.2.0-35.40
ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5
Uname: Linux 4.2.0-35-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: razumov 1127 F.... pulseaudio
CurrentDesktop: KDE
Date: Sun Apr 10 21:14:08 2016
InstallationDate: Installed on 2016-04-09 (1 days ago)
InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 13d3:3472 IMC Networks
Bus 001 Device 002: ID 04f2:b52b Chicony Electronics Co., Ltd
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK COMPUTER INC. X756UJ
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-35-generic.efi.signed root=UUID=288fe531-b2a3-428d-aa05-95c477ee6833 ro quiet splash acpi_osi= vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.2.0-35-generic N/A
linux-backports-modules-4.2.0-35-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: 10/23/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: X756UJ.206
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: X756UJ
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX756UJ.206:bd10/23/2015:svnASUSTeKCOMPUTERINC.:pnX756UJ:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX756UJ:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: X756UJ
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
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