Ubuntu
alsa-driver package

  1. Bug #1040873
  2. Comment #99

Comment 99 for bug 1040873

Revision history for this message
David Henningsson (diwic) wrote :

Thanks for the log - it looks like the error is with the channel matrix:

Here's where it does not work, i e, no sound sent to O02 and O03:

( 39.718| 0.000) D: [pulseaudio] resampler.c: I00 I01
( 39.718| 0.000) D: [pulseaudio] resampler.c: +------------
( 39.718| 0.000) D: [pulseaudio] resampler.c: O00 | 1.000 0.000
( 39.718| 0.000) D: [pulseaudio] resampler.c: O01 | 0.000 1.000
( 39.718| 0.000) D: [pulseaudio] resampler.c: O02 | 0.000 0.000
( 39.718| 0.000) D: [pulseaudio] resampler.c: O03 | 0.000 0.000

Surround 4.0 looks like this:

( 61.474| 0.000) D: [pulseaudio] resampler.c: I00 I01
( 61.474| 0.000) D: [pulseaudio] resampler.c: +------------
( 61.474| 0.000) D: [pulseaudio] resampler.c: O00 | 1.000 0.000
( 61.474| 0.000) D: [pulseaudio] resampler.c: O01 | 0.000 1.000
( 61.474| 0.000) D: [pulseaudio] resampler.c: O02 | 1.000 0.000
( 61.474| 0.000) D: [pulseaudio] resampler.c: O03 | 0.000 1.000

Working surround 2.1 looks like this:

( 70.122| 0.000) D: [pulseaudio] resampler.c: I00 I01
( 70.122| 0.000) D: [pulseaudio] resampler.c: +------------
( 70.122| 0.000) D: [pulseaudio] resampler.c: O00 | 1.000 0.000
( 70.122| 0.000) D: [pulseaudio] resampler.c: O01 | 0.000 1.000
( 70.122| 0.000) D: [pulseaudio] resampler.c: O02 | 0.500 0.500
( 70.122| 0.000) D: [pulseaudio] resampler.c: O03 | 0.500 0.500