This bug still exists in Ubuntu 12.04 LTS and (re)reported in Red Hat Bugzilla's as bug 749366, so I believe we need a new bug report to get a fix for this into a 12.04.x point release?
If Andrei's patch to increase bitpool in bluetooth daemon fixes this problem then the problem _is_ in bluez and changing the settings bluez uses via options to hciconfig (that aren't documented in it's man page) is only a workaround. I reproduced this choppy audio playback during mouse movements with the combination of: * Kernel: 3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:52:17 UTC 2012 x86_64 * Bluez: 4.98-2ubuntu7 * Jabra BT620s * Logitech Bluetooth Mouse M555b * Onboard Bluetooth in a VAIO-Z2 (connected internally via USB): ID 8086:0189 Intel Corp. Disconnecting my devices, then following Jen's instructions in comment #23 and re-pairing my devices worked for me as a workaround for this issue in bluez's link management. I will try using the uDev rule to make this workaround permanent across reboots. I've since streamed DI.fm without stutter for several hours whilst using my M555b mouse at same distance from the laptop as my Jabra bluetooth headset. After applying the hciconfig changes, and reconnecting both headset & mouse (as only devices connected) my "hciconfig -a" output is: hci0: Type: BR/EDR Bus: USB BD Address: 88:53:2E:29:C7:27 ACL MTU: 310:10 SCO MTU: 64:8 UP RUNNING PSCAN ISCAN RX bytes:10740963 acl:308181 sco:0 events:784453 errors:0 TX bytes:226808075 acl:779584 sco:0 commands:100 errors:0 Features: 0xff 0xff 0x8f 0xfe 0x9b 0xff 0x59 0x87 Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 Link policy: HOLD SNIFF PARK Link mode: ACCEPT MASTER Name: 'z2-0' Class: 0x7e0100 Service Classes: Networking, Rendering, Capturing, Object Transfer, Audio, Telephony Device Class: Computer, Uncategorized HCI Version: 3.0 (0x5) Revision: 0x1b07 LMP Version: 3.0 (0x5) Subversion: 0x0 Manufacturer: Intel Corp. (2) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/424215 Title: Bluetooth mouse usage makes A2DP audio stutter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/424215/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs