Ubuntu 15.04 bluetooth not working - Qualcom Atheros AR9485

[elichai2]

Hi,
I have Lenovo G510 With Atheros device.

Nature of peoblem :
Bluetooth not wotrking under Ubuntu 15.04 but wifi working fine.

Kernel:
Linux Lenovo-G510 3.19.0-30-generic #33-Ubuntu SMP Mon Sep 21 20:58:04 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

I tried some online solutions and I couldn't fix it.

This is a link to more details i posted in askubuntu:
https://askubuntu.com/questions/680353/bluetooth-not-working-ubuntu-15-04-qualcomm-atheros-ar9485

Thanks!

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: linux-image-3.19.0-30-generic 3.19.0-30.33
ProcVersionSignature: Ubuntu 3.19.0-30.33-generic 3.19.8-ckt6
Uname: Linux 3.19.0-30-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: elichai2 3932 F.... pulseaudio
 /dev/snd/controlC0: elichai2 3932 F.... pulseaudio
CurrentDesktop: Unity
Date: Thu Oct 1 12:53:42 2015
InstallationDate: Installed on 2014-12-14 (290 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: LENOVO 20238
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-30-generic.efi.signed root=UUID=cbeb5de6-c804-4544-ae60-b8da5b275fea ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.19.0-30-generic N/A
 linux-backports-modules-3.19.0-30-generic N/A
 linux-firmware 1.143.4
SourcePackage: linux
UpgradeStatus: Upgraded to vivid on 2015-04-25 (158 days ago)
dmi.bios.date: 10/20/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: 79CN50WW(V3.09)
dmi.board.asset.tag: No Asset Tag
dmi.board.name: INVALID
dmi.board.vendor: LENOVO
dmi.board.version: 00000000Not Defined
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo G510
dmi.modalias: dmi:bvnLENOVO:bvr79CN50WW(V3.09):bd10/20/2014:svnLENOVO:pn20238:pvrLenovoG510:rvnLENOVO:rnINVALID:rvr00000000NotDefined:cvnLENOVO:ct10:cvrLenovoG510:
dmi.product.name: 20238
dmi.product.version: Lenovo G510
dmi.sys.vendor: LENOVO

[Brad Figg (brad-figg)]

This change was made by a bot.

[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.3 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.3-rc3-unstable/

[elichai2 (elichai2)]

Tried both `4.3.0-040300rc3` and `3.19.0-29` kernels and the bluetooth still wasn't recognized.

[Jeremy (wa113y3s)]

Joseph, elichai2 filed this bug report https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1429552 on ubuntu 14.10 and the bluetooth was detected in lsusb but was fixed with kernel 3.16.0-32

[elichai2 (elichai2)]

I found these lines in dmesg:
`[ 4.780100] usb 1-7: Product: Bluetooth USB Host Controller
[ 16.342944] Bluetooth: Core ver 2.20
[ 16.342958] Bluetooth: HCI device and connection manager initialized
[ 16.342962] Bluetooth: HCI socket layer initialized
[ 16.342964] Bluetooth: L2CAP socket layer initialized
[ 16.342968] Bluetooth: SCO socket layer initialized`

[elichai2 (elichai2)]

Ok, I think i'm getting somewhere, I don't know how but now I've found Bluetooth in lsmod and in rfkill and it got a soft block:

elichai2@Lenovo-G510:~$ lsmod | grep blue
bluetooth 491520 2 ath3k,btusb

elichai2@Lenovo-G510:~$ rfkill list
0: ideapad_wlan: Wireless LAN
        Soft blocked: no
        Hard blocked: no
1: ideapad_bluetooth: Bluetooth
        Soft blocked: yes
        Hard blocked: no
2: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no

[elichai2 (elichai2)]

Same problem again :\
Now it's just like the beginning (not found in rfkill)

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]