Simultaneous BT headphones and mouse connection cause audio lag

[George Shuklin]

If bluetooth mouse connected after headphones (external BT audio speaker), sound getting laggy (sometimes interrupts and not in sync with video). If connection order is reverse (mouse, than audio) problem is much lesser visible (rare glitches and almost fine sync in video), but still annoying.

Information about devices:

~> bt-device -i 00:1A:40:04:8C:D4
[00:1A:40:04:8C:D4]
  Name: Bluetooth Mouse V1
  Alias: Bluetooth Mouse V1 [rw]
  Address: 00:1A:40:04:8C:D4
  Icon: input-mouse
  Class: 0x2580
  Paired: 1
  Trusted: 1 [rw]
  Blocked: 0 [rw]
  Connected: 1
  UUIDs: [HumanInterfaceDevice, PnPInformation]
 ~> bt-device -i CC:C5:0A:5F:9C:F2
[CC:C5:0A:5F:9C:F2]
  Name: GOLF
  Alias: GOLF [rw]
  Address: CC:C5:0A:5F:9C:F2
  Icon: audio-card
  Class: 0x240404
  Paired: 1
  Trusted: 1 [rw]
  Blocked: 0 [rw]
  Connected: 1
  UUIDs: [AudioSink, AVRemoteControlTarget, AVRemoteControl, Handsfree, 00001131-0000-1000-8000-00805f9b34fb, PnPInformation]

dmesg message about mouse:
[47792.839746] hid-generic 0005:09DA:80F0.000D: input,hidraw0: BLUETOOTH HID v0.1e Keyboard [Bluetooth Mouse V1] on 7c:e9:d3:b4:f4:38

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: bluez 4.101-0ubuntu8b1
ProcVersionSignature: Ubuntu 3.12.0-5.13-generic 3.12.2
Uname: Linux 3.12.0-5-generic i686
ApportVersion: 2.12.7-0ubuntu1
Architecture: i386
CurrentDesktop: XFCE
Date: Sun Dec 8 09:37:59 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2013-07-19 (141 days ago)
InstallationMedia: Xubuntu 13.04 "Raring Ringtail" - Release i386 (20130423.1)
InterestingModules: btusb rfcomm bnep bluetooth
MachineType: LENOVO 4298R86
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.12.0-5-generic root=UUID=3d4ce850-6e8a-4cf5-9b82-fb135c22fe1e ro quiet splash vt.handoff=7
SourcePackage: bluez
UpgradeStatus: Upgraded to trusty on 2013-11-30 (7 days ago)
dmi.bios.date: 12/01/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 8DET56WW (1.26 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4298R86
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr8DET56WW(1.26):bd12/01/2011:svnLENOVO:pn4298R86:pvrThinkPadX220Tablet:rvnLENOVO:rn4298R86:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4298R86
dmi.product.version: ThinkPad X220 Tablet
dmi.sys.vendor: LENOVO
hciconfig:
 hci0: Type: BR/EDR Bus: USB
  BD Address: 7C:E9:D3:B4:F4:38 ACL MTU: 1021:8 SCO MTU: 64:1
  UP RUNNING PSCAN ISCAN
  RX bytes:4127588 acl:263066 sco:0 events:24391 errors:0
  TX bytes:38936220 acl:40083 sco:0 commands:4253 errors:0
mtime.conffile..etc.bluetooth.audio.conf: 2013-11-18T21:33:12.925899

[Konrad Zapałowicz (kzapalowicz)]

This is reported against an old version of Ubuntu and many things has changed since then. Because of that we won't fix this issue however if this behavior repeats on a modern version please fill a bug report against it and we will take it from there.

[George Shuklin (george-shuklin)]

Thank you for cooperation. All my bugreports are closes as outdated as soon as version no longer supported. And two years without fixes. Thank you very much!