No Subwoofer everytime when song/movie changes to next one

[Shunsuke Akagi]

At first I thought it would happen on Clementine only but I figured out this is not limited on Clementine.
This is PulseAudio bug.
I have SB X-Fi Analog Output. But it does not seem to depend on hardware. It looks like a simple sofware problem.
At the first music subwoofer works but everytime music changes, subwoofer would get quiet. I have to change mode to whatever different mode such as 7.1 or something once and change it back then subwoofer would come back.
It would happen under any x.1 mode as long as subwoofer is with the mode.

[rob (robbedoes18)]

Any updates on this? i installed Elementary OS and i have exactly the same bug :S Tried for over 3 hours to get it working. Alsaaudio does not have the bug but Alsa sucks because of the lack of keyboard mediakeys support.

[Shunsuke Akagi (shoon)]

rob
as you see, nobody has responded to this problem except for you.
It is vbery annoying, isn't it?
If it was a movie, subwoofer may last about two hours but when it was songs, we would have to change the mode every time when the song change.
I wonder not so many ubuntu users do not have real x.1 channel system.
Please change the status to "confirmed",
And please check the other my bug reports related to subwoofer and make them confirmed.

[Raymond (superquad-vortex2)]

post the pulseaudio log when you play stereo using 5.1 profile

https://wiki.ubuntu.com/PulseAudio/Log

https://wiki.ubuntu.com/Audio/AlsaInfo

pactl list

pactl stat

[Shunsuke Akagi (shoon)]

It did not work before but when I tried again, it worked!
Here is the debug logs you have requested.

[tim smeets (timsmeets)]

This bug also affects me,
I'm using Fedora 19 KDE latest kernel and updates.
I used the following tutorial to make the external sub-woofer work on my laptop, but this should not be the problem since it worked fine before.
http://askubuntu.com/questions/189304/no-sound-from-external-subwoofer-sonic-master-on-an-asus-n76vm
another weird thing is that under audio settings sub-woofer test button still plays a sound through the sub-woofer even though the program playing sound (Clementine or any player) does not use the sub-woofer.
just a wild guess but this might be related to lfe-remixing

[Raymond (superquad-vortex2)]

are you using creative 4.1 speakers with green and black jacks ?

0.000) D: [pulseaudio] alsa-util.c: snd_pcm_dump():
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: Route conversion PCM
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: Transformation table:
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: 0 <- 0
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: 1 <- 1
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: 2 <- 2
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: 3 <- 3
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: 4 <- none
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: 5 <- 4
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: Its setup is:
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: stream : PLAYBACK
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: access : MMAP_INTERLEAVED
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: format : S16_LE
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: subformat : STD
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: channels : 5
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: rate : 44100
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: exact rate : 44100 (44100/1)
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: msbits : 16
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: buffer_size : 10922
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: period_size : 5461
( 18.202| 0.000) D: [pulseaudio] alsa-util.c: period_time : 123832

[Erik Kubica (erik-kubica)]

Problem still persist in 14.10, but can add this information:
Woofer goes only when song is manually changed (rhythmbox), if autoplayback than woofer is ok on song change. so i thing problem is somewhere where pulse or alsa goes standby.

[Daniel van Vugt (vanvugt)]

Thank you for reporting this bug to Ubuntu.
Ubuntu 14.10 (utopic) reached end-of-life on July 23, 2015.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Launchpad Janitor (janitor)]

[Expired for pulseaudio (Ubuntu) because there has been no activity for 60 days.]