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Message #147787
[Bug 1519298] Re: btusb.ko preferred over ath3k.ko for Atheros AR3012 Bluetooth 4.0
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.4 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/v4.4-rc2+cod1-wily/
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1519298
Title:
btusb.ko preferred over ath3k.ko for Atheros AR3012 Bluetooth 4.0
Status in linux package in Ubuntu:
Incomplete
Bug description:
Since upgrading from 14.10 to 15.04 and then 15.10, my Bluetooth is
buggy (e.g., it does not automatically connect to my headphone, needs
manual "turning on" in the indicator applet and some good luck to do
this).
My bluetooth device is
# lsusb | grep Blue
Bus 004 Device 014: ID 0cf3:3004 Atheros Communications, Inc. AR3012 Bluetooth 4.0
I think this device should be handled by ath3k.ko:
# modinfo /lib/modules/$(uname -r)/kernel/drivers/bluetooth/ath3k.ko| grep 3004
alias: usb:v0CF3p3004d*dc*dsc*dp*ic*isc*ip*in*
alias: usb:v04CAp3004d*dc*dsc*dp*ic*isc*ip*in*
# uname -r
4.2.0-18-generic
Indeed, ath3k.ko is loaded
# lsmod | grep 'ath3k\|btusb'
ath3k 20480 0
btusb 45056 0
btrtl 16384 1 btusb
btbcm 16384 1 btusb
btintel 16384 1 btusb
bluetooth 516096 48 bnep,ath3k,btbcm,btrtl,btusb,rfcomm,btintel
However, if I remove ath3k, bluetooth keeps streaming sound to my headphone:
# modprobe -r ath3k
[noting happens]
while, if I remove the generic module
# modprobe -r btusb
the entire bluetooth architechture breaks down, my headphone goes silent, and sound now comes out of the built-in speakers.
I'd hope that if ath3k was actually used, my bluetooth would be less
buggy. What can I do?
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-18-generic 4.2.0-18.22
ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3
Uname: Linux 4.2.0-18-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: axel 3114 F.... pulseaudio
CurrentDesktop: Unity
Date: Tue Nov 24 10:20:54 2015
DistributionChannelDescriptor:
# This is a distribution channel descriptor
# For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-precise-amd64-20120703-2
HibernationDevice: RESUME=UUID=39fd7402-c630-4457-b2aa-6cfd16a1f97a
InstallationDate: Installed on 2013-08-01 (844 days ago)
InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20120703-15:08
MachineType: Dell Inc. Dell System XPS L322X
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-18-generic root=UUID=ff211774-a9b8-42ab-896c-c542fb10c871 ro quiet splash pcie_aspm=force vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.2.0-18-generic N/A
linux-backports-modules-4.2.0-18-generic N/A
linux-firmware 1.149.2
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/18/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.name: 0PJHXN
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 0.1
dmi.modalias: dmi:bvnDellInc.:bvrA08:bd04/18/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn0PJHXN:rvrA00:cvnDellInc.:ct8:cvr0.1:
dmi.product.name: Dell System XPS L322X
dmi.sys.vendor: Dell Inc.
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