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[Bug 405294] Re: a2dp skips terribly

 

In addition to the skipping problem that others are experiencing, my
bluetooth headphones lag behind the laptop by about 500ms. I sometimes
feel like the lag can get worse until I restart the laptop. This only
started happening after upgrading to 14.04.

Lenovo t440s
Bluetooth => Intel Bluetooth firmware file: intel/ibt-hw-37.7.10-fw-1.80.2.3.d.bseq
Linux => 3.13.0-27-generic #50-Ubuntu SMP Thu May 15 18:06:16 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
pulseaudio => 1:4.0-0ubuntu11
pulseaudio-module-bluetooth => 1:4.0-0ubuntu11

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https://bugs.launchpad.net/bugs/405294

Title:
  a2dp skips terribly

Status in PulseAudio sound server:
  New
Status in “bluez” package in Ubuntu:
  Confirmed
Status in “pulseaudio” package in Ubuntu:
  Confirmed

Bug description:
  As I upgraded to the Karmic alpha, bluetooth audio (via a2dp) stopped
  working properly. It was working fine in Jaunty.

  My headphones are detected and configured by pulse, but the audio
  skips as if it's spending half of each second paused. Music is
  buffered so that after I click stop on rhythmbox (or whatever--it
  happens with whatever player I use) the audio continues until it's
  caught up.

  syslog is full of the following lines:
  Jul 27 08:55:45 carlin1 pulseaudio[3218]: alsa-source.c: Increasing minimal latency to 1.00 ms
  Jul 27 08:55:46 carlin1 pulseaudio[3218]: module-bluetooth-device.c: Skipping 15128 us (= 2668 bytes) in audio stream
  Jul 27 08:55:46 carlin1 pulseaudio[3218]: module-bluetooth-device.c: Skipping 36586 us (= 6452 bytes) in audio stream
  Jul 27 08:55:46 carlin1 pulseaudio[3218]: module-bluetooth-device.c: Skipping 35593 us (= 6276 bytes) in audio stream
  Jul 27 08:55:46 carlin1 pulseaudio[3218]: module-bluetooth-device.c: Skipping 36597 us (= 6452 bytes) in audio stream
  Jul 27 08:55:46 carlin1 pulseaudio[3218]: module-bluetooth-device.c: Skipping 32601 us (= 5748 bytes) in audio stream
  Jul 27 08:55:46 carlin1 pulseaudio[3218]: module-bluetooth-device.c: Skipping 32589 us (= 5748 bytes) in audio stream

  This is with
  bluez                             4.45-0ubuntu4
  pulseaudio                    1:0.9.15-4ubuntu2 0

  pulseaudio version 1:0.9.16~test2-0ubuntu1~ppa3 from ubuntu-audio-dev
  didn't help.

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