Bug 48730 - pulseaudio does not set volume on left channel correctly with Sonica Theater USB sound card
Summary: pulseaudio does not set volume on left channel correctly with Sonica Theater ...
Alias: None
Product: PulseAudio
Classification: Unclassified
Component: daemon (show other bugs)
Version: unspecified
Hardware: x86 (IA32) Linux (All)
: medium normal
Assignee: pulseaudio-bugs
QA Contact: pulseaudio-bugs
Depends on:
Reported: 2012-04-15 04:52 UTC by Martin Steigerwald
Modified: 2018-07-30 10:21 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

pulseaudio -vvvvv log of starting pulseaudio, plugging in Sonica Theater and unplugging it (416.41 KB, text/x-log)
2012-04-15 04:52 UTC, Martin Steigerwald
lsusb -v with the Sonica Theater sound card attached (75.00 KB, text/plain)
2012-04-15 04:52 UTC, Martin Steigerwald

Description Martin Steigerwald 2012-04-15 04:52:04 UTC
Created attachment 60009 [details]
pulseaudio -vvvvv log of starting pulseaudio, plugging in Sonica Theater and unplugging it

When I plug in the USB Sonica Theater and Pulseaudio recognized instead of the bailing out with "usb_set_interface failed" message I get the following situation regarding volume acording to alsamixer:

- left channel: 0
- right channel: 79

Expected results:

Both channels at 79 or something like that.

I reported this on Pulseaudio mailing list already:

[pulseaudio-discuss] usb sound card: PCM has 8 channels, thats too much & cannot submit datapipe for urb 0

I think its due to:

> Nov 19 21:47:05 merkaba pulseaudio[1666]: [pulseaudio] alsa-mixer.c:
> Volume element PCM has 8 channels. That's too much! I can't handle
> that! Nov 19 21:47:05 merkaba kernel: [   53.498439] cannot submit
> datapipe for urb 0, error -28: not enough bandwidth

As Tanu Kaskinen requested I now did a pulseaudio -vvvvv log that I will attach.

The sound card involved is:

martin@shambhala:~> lsusb   
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 003: ID 0763:2007 Midiman M-Audio Sonica Theater

(lsusb-v I will attach as well).

Comment 1 Martin Steigerwald 2012-04-15 04:52:34 UTC
Created attachment 60010 [details]
lsusb -v with the Sonica Theater sound card attached
Comment 2 Martin Steigerwald 2012-04-15 05:00:37 UTC
This is on a ThinkPad T42 with:

martin@shambhala:~> apt-show-versions | egrep "(gstreamer|pulseaudio|phonon)"
gstreamer0.10-alsa/wheezy uptodate 0.10.36-1
gstreamer0.10-ffmpeg/wheezy uptodate 0.10.13-2
gstreamer0.10-fluendo-mp3/wheezy uptodate 0.10.15.debian-1
gstreamer0.10-gconf/wheezy uptodate 0.10.31-1
gstreamer0.10-gnomevfs/wheezy uptodate 0.10.36-1
gstreamer0.10-nice/wheezy uptodate 0.1.1-2
gstreamer0.10-plugins-bad/wheezy uptodate 0.10.23-1
gstreamer0.10-plugins-base/wheezy uptodate 0.10.36-1
gstreamer0.10-plugins-good/wheezy uptodate 0.10.31-1
gstreamer0.10-plugins-ugly/wheezy uptodate 0.10.19-1
gstreamer0.10-pulseaudio/wheezy uptodate 0.10.31-1
gstreamer0.10-x/wheezy uptodate 0.10.36-1
libgstreamer-plugins-bad0.10-0/wheezy uptodate 0.10.23-1
libgstreamer-plugins-base0.10-0/wheezy uptodate 0.10.36-1
libgstreamer0.10-0/wheezy uptodate 0.10.36-1
libphonon4/wheezy uptodate 4:
phonon/wheezy uptodate 4:
phonon-backend-gstreamer/wheezy uptodate 4:
phonon-backend-vlc/wheezy uptodate 0.5.0-1
pulseaudio/wheezy uptodate 1.1-3+b1
pulseaudio-module-x11/wheezy uptodate 1.1-3+b1
pulseaudio-utils/wheezy uptodate 1.1-3+b1

But it happens on my Amarok-T23 and my work T520 as well.
Comment 3 Martin Steigerwald 2012-04-15 05:30:08 UTC
I have now for the first time see this without Pulseaudio. On the T23 after plugging back the Sonica Theater to it. But at least it doesn´t seem to show up after suspend/resume cycle or reboot.

So this actually might be an ALSA issue or at least related to an ALSA issue. Can you tell more from the logs?
Comment 4 Martin Steigerwald 2012-04-15 06:58:16 UTC
It might also be a bug that Phonon, its gstreamer backend or gstreamer itself shares with PulseAudio. I remember that I had a time where I never had this issue: AFAIR that was with the Xine backend of Phonon which is now deprecated and removed from Debian Testing.

alsamixer -c1 sees the following channels:

- PCM front: two volume controls (left/right) - this is the one relevant for me
- PCM back: two volume controls
- PCM middle: one volume control
- PCM bass: one volume control
- PCM sides: two volume controls

without any additional ALSA configuration that is.

I only use stereo. But officially it is a 7.1 surround card, but my receiver only handles stereo.

And I correct a wrong left volume setting via alsamixer as well, thus it seems to work in ALSA.
Comment 5 GitLab Migration User 2018-07-30 10:21:18 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

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