audio skips, pulseaudio -vvv shows underrun in module-alsa-sink.c
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: pulseaudio
During playback of audio, I frequently (3-4 times a night) encounter the problem that during playback audio suddenly is skipped. It then sounds like when you fast-forward a CD in a CD player - a small fragment of audio is played correctly, after which a new fragment from further down the track is played etc. The audio track is also finished too early. When this occurs, I get the message I: module-alsa-sink.c: underrun. Killing and restarting pulseaudio fixes the problem, until it happens again.
Ubuntu 9.04
pulseaudio 0.9.14-0ubuntu20
ProblemType: Bug
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Card0.Amixer.info:
Card hw:0 'AudioPCI'/'Ensoniq AudioPCI ENS1371 at 0xc000, irq 17'
Mixer name : 'SigmaTel STAC9721,23'
Components : 'AC97a:83847609'
Controls : 36
Simple ctrls : 23
Card1.Amixer.info:
Card hw:1 'V8237'/'VIA 8237 with AD1980 at 0x1000, irq 22'
Mixer name : 'Analog Devices AD1980'
Components : 'AC97a:41445370'
Controls : 53
Simple ctrls : 39
DistroRelease: Ubuntu 9.04
NonfreeKernelMo
Package: pulseaudio 1:0.9.14-0ubuntu20
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: pulseaudio
Uname: Linux 2.6.28-11-generic x86_64
affects: | pulseaudio (Ubuntu) → linux (Ubuntu) |
BTW, I have two audio devices, one on-board (AC97) that I do not use, and a SoundBlaster PCI 128 (Ensoniq 5880B) with which the above described behavior occurs. I have attached the output of lspci for details.