Bluetooth audio instability: Bluetooth: hci0 SCO packet for unknown connection handle
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Medium
|
Unassigned |
Bug Description
(I'm creating a new bug as instructed at https:/
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-
ProcVersionSign
Uname: Linux 3.16.0-31-generic x86_64
ApportVersion: 2.14.7-0ubuntu8.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
CurrentDesktop: X-Cinnamon
Date: Wed Mar 11 11:22:19 2015
EcryptfsInUse: Yes
HibernationDevice: RESUME=
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=
RelatedPackageV
linux-
linux-
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.
dmi.board.name: 20C600LLMS
dmi.board.vendor: LENOVO
dmi.board.version: SDK0E50510 WIN
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 20C600LLMS
dmi.product.
dmi.sys.vendor: LENOVO
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
tags: | added: cscc |
I'd like to add that i have now a different laptop (Lenovo E540) than previously, so the bug most probably isn't in the general bluetooth hardware drivers. Other people suffer from the bug with a large variety of hardware.