Bluetooth not working in Ubuntu 14.04 LTS
 

Hi All,

The Bluetooth device is not working. It worked however in Windows 7 Professional version 64 bit.

The error message is "No Adapters found for Bluetooth".

Can anyone help on this.

Have you check output of lspci & dmesg?

dmesg output

niladri@niladri:~$ dmesg | grep -i blue
[ 23.753724] Bluetooth: Core ver 2.17
[ 23.753752] Bluetooth: HCI device and connection manager initialized
[ 23.753765] Bluetooth: HCI socket layer initialized
[ 23.753769] Bluetooth: L2CAP socket layer initialized
[ 23.753777] Bluetooth: SCO socket layer initialized
[ 23.758336] Bluetooth: RFCOMM TTY layer initialized
[ 23.758352] Bluetooth: RFCOMM socket layer initialized
[ 23.758358] Bluetooth: RFCOMM ver 1.11
[ 24.253529] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 24.253535] Bluetooth: BNEP filters: protocol multicast
[ 24.253549] Bluetooth: BNEP socket layer initialized


lspci output

niladri@niladri:~$ lspci
00:00.0 Host bridge: Intel Corporation Core Processor DRAM Controller (rev 12)
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 12)
00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06)
00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05)
00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 05)
00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5)
00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05)
00:1f.6 Signal processing controller: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem (rev 05)
01:00.0 Ethernet controller: Broadcom Corporation NetLink BCM57780 Gigabit Ethernet PCIe (rev 01)
02:00.0 Network controller: Qualcomm Atheros AR928X Wireless Network Adapter (PCI-Express) (rev 01)
ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers (rev 02)
ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 02)
ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 02)
ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 02)
ff:02.2 Host bridge: Intel Corporation Core Processor Reserved (rev 02)
ff:02.3 Host bridge: Intel Corporation Core Processor Reserved (rev 02)

Try

The lspci | grep Bluetooth shows nothing.

The dmesg output is below.

niladri@niladri:~$ dmesg | grep -i blue
[ 23.753724] Bluetooth: Core ver 2.17
[ 23.753752] Bluetooth: HCI device and connection manager initialized
[ 23.753765] Bluetooth: HCI socket layer initialized
[ 23.753769] Bluetooth: L2CAP socket layer initialized
[ 23.753777] Bluetooth: SCO socket layer initialized
[ 23.758336] Bluetooth: RFCOMM TTY layer initialized
[ 23.758352] Bluetooth: RFCOMM socket layer initialized
[ 23.758358] Bluetooth: RFCOMM ver 1.11
[ 24.253529] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 24.253535] Bluetooth: BNEP filters: protocol multicast
[ 24.253549] Bluetooth: BNEP socket layer initialized

Like me you are probably using a Bluetooth USB dongle so it doesn't show up in lspci???

Have you solved this problem? My device was picked up in 12.04 perfectly but now in 14.04 it's gone.