Red Hat Bugzilla – Bug 509216
Pulseaudio skips, uses large amount of cpu time with a2dp output
Last modified: 2009-07-30 20:16:39 EDT
Description of problem:
When playing via a2dp bluetooth headphones, the audio output is very choppy and pulseaudio uses ~30-80% of the cpu.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Select a2dp output
2. Start playing music in banshee
Music starts, but soon becomes very choppy. Pulseaudio uses lots of CPU.
Music playing cleanly.
If I start pulseaudio without --no-cpu-limit it dies quickly with:
Jul 1 11:32:39 abulafia pulseaudio: cpulimit.c: Received request to terminate due to CPU overload.
With --no-cpu-limit, it keeps going.
Playing lower-bitrate audio, like youtube videos, plays fine, with no dropouts.
I'm using Sony DR-BT22A headphones.
I use a bluetooth mouse with no problems, so I think that rules out any low-level bluetooth problem.
Some A2DP headsets have issues with flow control. PA in rawhide should deal with those headsets better. Feel free to reopen if the problem is not fixed in rawhide.