kernel: [some.number] Bluetooth: hci0 ACL packet for unknown connection handle ##

Bug #1548317 reported by Fredrik Jacobsson
12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Expired
Low
Unassigned

Bug Description

Bluetooth receiver doesn't connect with kernel after sleep/boot-up. The receiver is awake because "kernel: [339132.269449] Bluetooth: hci0 ACL packet for unknown connection handle ##" appears in the system log because I'm shaking the mouse.
Sometimes it takes over 4 minutes of shaking to reconnect the mouse.

I do not know where to report this bug.

Is it the kernel? Because it's the kernel that report that something is happening on the bluetooth receiver.
Is it HCI? Because if I reset hci0, I have to shake the mouse again.
Is it the hardware driver that enter sleep mode incorrectly?
And finally, is it the bluetooth stack?

This machine runs Ubuntu 16.04 but I've had this problem as long as I've had this computer. It's a Lenovo G50-45 with a Realtek 8723BE Wifi/Bluetooth combo HARDCODED into the BIOS (It will not boot if you change the network card to something else, like Intel 7260).
---
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: fredrik 1894 F.... pulseaudio
 /dev/snd/controlC1: fredrik 1894 F.... pulseaudio
CurrentDesktop: GNOME-Flashback:Unity
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=9ec0fd10-34c8-49e3-b061-5a4ead3a24a9
InstallationDate: Installed on 2015-01-22 (395 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
MachineType: LENOVO 80E3
Package: linux (not installed)
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-6-generic root=UUID=fce91e77-dd20-4685-92a5-d75cd06ff8b6 ro persistent quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-6.21-generic 4.4.1
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-6-generic N/A
 linux-backports-modules-4.4.0-6-generic N/A
 linux-firmware 1.156
Tags: xenial
Uname: Linux 4.4.0-6-generic x86_64
UpgradeStatus: Upgraded to xenial on 2015-05-26 (272 days ago)
UserGroups: adm cdrom dip lpadmin netdev plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 08/26/2014
dmi.bios.vendor: LENOVO
dmi.bios.version: A2CN25WW(V1.07)
dmi.board.asset.tag: No Asset Tag
dmi.board.name: Lancer 5B2
dmi.board.vendor: LENOVO
dmi.board.version: SDK0F82993 WIN
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo G50-45
dmi.modalias: dmi:bvnLENOVO:bvrA2CN25WW(V1.07):bd08/26/2014:svnLENOVO:pn80E3:pvrLenovoG50-45:rvnLENOVO:rnLancer5B2:rvrSDK0F82993WIN:cvnLENOVO:ct10:cvrLenovoG50-45:
dmi.product.name: 80E3
dmi.product.version: Lenovo G50-45
dmi.sys.vendor: LENOVO

description: updated
description: updated
Revision history for this message
Brad Figg (brad-figg) wrote : Missing required logs.

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1548317

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux (Ubuntu):
status: New → Incomplete
Revision history for this message
Fredrik Jacobsson (smask) wrote : AlsaInfo.txt

apport information

tags: added: apport-collected xenial
description: updated
Revision history for this message
Fredrik Jacobsson (smask) wrote : CRDA.txt

apport information

Revision history for this message
Fredrik Jacobsson (smask) wrote : CurrentDmesg.txt

apport information

Revision history for this message
Fredrik Jacobsson (smask) wrote : IwConfig.txt

apport information

Revision history for this message
Fredrik Jacobsson (smask) wrote : JournalErrors.txt

apport information

Revision history for this message
Fredrik Jacobsson (smask) wrote : Lspci.txt

apport information

Revision history for this message
Fredrik Jacobsson (smask) wrote : Lsusb.txt

apport information

Revision history for this message
Fredrik Jacobsson (smask) wrote : ProcCpuinfo.txt

apport information

Revision history for this message
Fredrik Jacobsson (smask) wrote : ProcEnviron.txt

apport information

Revision history for this message
Fredrik Jacobsson (smask) wrote : ProcInterrupts.txt

apport information

Revision history for this message
Fredrik Jacobsson (smask) wrote : ProcModules.txt

apport information

Revision history for this message
Fredrik Jacobsson (smask) wrote : PulseList.txt

apport information

Revision history for this message
Fredrik Jacobsson (smask) wrote : RfKill.txt

apport information

Revision history for this message
Fredrik Jacobsson (smask) wrote : UdevDb.txt

apport information

Revision history for this message
Fredrik Jacobsson (smask) wrote : WifiSyslog.txt

apport information

Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Changed in linux (Ubuntu):
importance: Undecided → Medium
Revision history for this message
penalvch (penalvch) wrote :

Fredrik Jacobsson, thank you for reporting this and helping make Ubuntu better.

As per http://support.lenovo.com/us/en/products/Laptops-and-netbooks/Lenovo-G-Series-laptops/G50-45-Notebook-Lenovo?linkTrack=GPS:Body_Search%20Products&beta=false an update to your computer's buggy, insecure, and outdated BIOS is available (38). If you update to this following https://help.ubuntu.com/community/BIOSUpdate does it change anything?

For more on BIOS updates and linux, please see https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette .

Please note your current BIOS is already in the Bug Description, so posting this on the old BIOS would not be helpful.

Also, you don't have to create a new bug report.

Once the BIOS is updated, if the problem is still reproducible:
1) Please provide the output of the following terminal command (not perform an apport-collect):
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date
2) Please make a comment specifically advising on if there was an improvement or not.
3) Please mark this report Status Confirmed.

If it's not reproducible, please mark this as Invalid.

Thank you for your understanding.

tags: added: bios-outdated-a2cn25ww
Changed in linux (Ubuntu):
importance: Medium → Low
status: Confirmed → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

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

Changed in linux (Ubuntu):
status: Incomplete → Expired
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