Public bug reported:
(I'm creating a new bug as instructed at
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/898347/comments/29)
I havea Nokia BH-216 bluetooth headset. Generally it works well, but
randomly (after 5-15 minutes of use) it gets disconnected.
The kernel log output looks like this:
[ 3272.270382] Bluetooth: hci0 SCO packet for unknown connection handle 0
[ 3272.270383] Bluetooth: hci0 SCO packet for unknown connection handle 0
[ 3272.270384] Bluetooth: hci0 SCO packet for unknown connection handle 0
[ 3272.270384] Bluetooth: hci0 SCO packet for unknown connection handle 48
[ 3272.270385] Bluetooth: hci0 SCO packet for unknown connection handle 0
[ 3272.270386] Bluetooth: hci0 SCO packet for unknown connection handle 0
With quick googling this seems to be happening to other people with
other hardware and distributions so i suppose this is a BT audio bug in
kernel. Bug #898347 is related.
Tested on up to date Ubuntu 14.10 x86_64.
ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: linux-image-3.16.0-31-generic 3.16.0-31.41
ProcVersionSignature: Ubuntu 3.16.0-31.41-generic 3.16.7-ckt5
Uname: Linux 3.16.0-31-generic x86_64
ApportVersion: 2.14.7-0ubuntu8.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: vranki 2421 F.... pulseaudio
/dev/snd/controlC1: vranki 2421 F.... pulseaudio
CurrentDesktop: X-Cinnamon
Date: Wed Mar 11 11:22:19 2015
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=71d76087-3fdf-4f57-a0f4-0b128be4d386
InstallationDate: Installed on 2015-02-12 (26 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: LENOVO 20C600LLMS
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-31-generic
root=UUID=e114ca99-f1c7-450f-a4a5-553075d92b7c ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.16.0-31-generic N/A
linux-backports-modules-3.16.0-31-generic N/A
linux-firmware 1.138.1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/14/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: J9ET96WW (2.16 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20C600LLMS
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrJ9ET96WW(2.16):bd10/14/2014:svnLENOVO:pn20C600LLMS:pvrThinkPadEdgeE540:rvnLENOVO:rn20C600LLMS:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 20C600LLMS
dmi.product.version: ThinkPad Edge E540
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug utopic
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https://bugs.launchpad.net/bugs/1430696
Title:
Bluetooth audio instability: Bluetooth: hci0 SCO packet for unknown
connection handle
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