Ubuntu
pulseaudio package

  1. Bug #1188425
  2. Comment #9

Comment 9 for bug 1188425

Revision history for this message
Artur de Araújo (artur-stat) wrote :

I added this to the a52.conf file located in /us/share/alsa/alsa.conf.d/a52.conf:

ctl.a52 {
 @args [ CARD ]
 @args.CARD {
  type string
  default 0
 }
 type hw
 card $CARD
}

And now I get this from pulseaudio:

I: [pulseaudio] alsa-sink.c: Successfully opened device a52:0.
I: [pulseaudio] alsa-sink.c: Selected mapping 'Digital Surround 5.1 (IEC958/AC3)' (iec958-ac3-surround-51).
I: [pulseaudio] alsa-sink.c: Cannot enable timer-based scheduling, falling back to sound IRQ scheduling.
I: [pulseaudio] alsa-sink.c: Successfully enabled mmap() mode.
I: [pulseaudio] alsa-util.c: Successfully attached to mixer 'a52:0'

Previously pulseaudio reported this:

I: [pulseaudio] alsa-sink.c: Successfully opened device a52:0.
I: [pulseaudio] alsa-sink.c: Selected mapping 'Digital Surround 5.1 (IEC958/AC3)' (iec958-ac3-surround-51).
I: [pulseaudio] alsa-sink.c: Cannot enable timer-based scheduling, falling back to sound IRQ scheduling.
I: [pulseaudio] alsa-sink.c: Successfully enabled mmap() mode.
I: [pulseaudio] (alsa-lib)control.c: Invalid CTL a52:0
I: [pulseaudio] alsa-util.c: Unable to attach to mixer a52:0: No such file or directory
I: [pulseaudio] alsa-sink.c: Failed to find a working mixer device.

This is an improvement that didn't resolved the audio breaking. The rest of the log file still looks the same!