Sound fading out on Dell E521 with Nvidia and Karmic

[Michael Obermeier]

Playing music (e.g. with Rythmbox) starts normal but within a few seconds the music is faded out and I can't here any sound" The audio settings are at a very high volume level.
The sound is muted until I reboot.

System was updated minutes before testing it another time (17.09.09, 8:55)

from dmesg:
[ 8.305081] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:10.1/input/input6
[ 8.665165] input: HDA NVidia Line In at Ext Rear Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input7
[ 8.665223] input: HDA NVidia Mic at Ext Front Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input8
[ 8.665273] input: HDA NVidia Mic at Ext Rear Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input9
[ 8.665314] input: HDA NVidia Speaker at Ext Rear Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input10
[ 8.665358] input: HDA NVidia Speaker at Ext Rear Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input11
[ 8.665400] input: HDA NVidia Speaker at Ext Rear Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input12
[ 8.665440] input: HDA NVidia Speaker at Ext Rear Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input13
[ 8.665486] input: HDA NVidia HP Out at Ext Front Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input14

ProblemType: Bug
Architecture: i386
CheckboxCommand: gst_pipeline_test -t 2 'audiotestsrc wave=sine freq=512 ! audioconvert ! audioresample ! gconfaudiosink'
CheckboxTest: playback_auto
Date: Thu Sep 17 09:00:15 2009
DistroRelease: Ubuntu 9.10
Package: python-gst0.10 0.10.16.2-1
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, user)
 LANG=de_DE.UTF-8
ProcVersionSignature: Ubuntu 2.6.31-10.34-generic
SourcePackage: gst0.10-python
Tags: checkbox-bug
Uname: Linux 2.6.31-10-generic i686

[Mynx (mynx)]

Just so you know, nVidia is graphics, not audio

[Alan Pope 🍺🐧🐱 🦄 (popey)]

Please be careful in giving advice on bugs UbuntuX. nVidia make audio hardware and video hardware.

[Dario Pecorella (dapeco)]

On Karmic just installed, I got the same problema (on the DELL Dimension C521). The issue seems to be only in the front plug, the rear plug work great. The same issue was present also in Ubuntu 9.04, but now the fade out is less fast and and sanmetime resetted, so the fade out can start again.

System:
Ubuntu 9.10 64bit - kernel 2.6.31-14-generic
lspci:
00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev a2)

dmesg:
[ 10.370113] input: HDA Digital PCBeep as /devices/pci0000:00/0000:00:10.1/input/input5
[ 11.230217] input: HDA NVidia Line In at Ext Rear Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input6
[ 11.230294] input: HDA NVidia Mic at Ext Front Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input7
[ 11.230347] input: HDA NVidia Mic at Ext Rear Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input8
[ 11.230397] input: HDA NVidia Speaker at Ext Rear Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input9
[ 11.230449] input: HDA NVidia Speaker at Ext Rear Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input10
[ 11.230502] input: HDA NVidia Speaker at Ext Rear Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input11
[ 11.230553] input: HDA NVidia Speaker at Ext Rear Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input12
[ 11.230622] input: HDA NVidia HP Out at Ext Front Jack as /devices/pci0000:00/0000:00:10.1/sound/card0/input13

[Flabdablet (flabdablet)]

Getting the same fading effect with a fresh install of Karmic on a Dell Dimension E520.

lspci lists the sound hardware as
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02)

Steps to reproduce:

1. Plug headphones into the front panel.
2. Open Places->Home Folder->Examples->Ubuntu Free Culture Showcase.
3. Double-click InTheCircle.oga.

Playback starts normally, but sound fades smoothly and is totally inaudible by 0:44.

Closing the movie player before sound has totally faded, waiting ten seconds, then double-clicking InTheCircle.oga again will start playback at a much reduced output level, as if the fade has been going on in the background even with no sound playing.

Leaving the movie player closed for a couple of minutes is enough to reset volume to normal.

Headphones plugged into the back panel are unaffected unless the plug is switched from front to back partway through a fade, in which case the sound level remains constant but faded.

[Flabdablet (flabdablet)]

OK, this isn't a bug, merely a misconfiguration. See MrQuincle's helpful post here:

http://ubuntuforums.org/showthread.php?p=8327304#post8327304

This particular Dimension E520 is now working well after adding the model=5stack option (it has the 5 jacks + SPDIF back panel).

[Björn Lundgren (bjlu9215)]

I can confirm Flabdablets solution on a Dell E520.

Sound now works fine

[Pedro Villavicencio (pedro)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We need some more information from you before we can start working on this bug.

Please include the information requested from the "Reporting Sound Bugs" section of https://wiki.ubuntu.com/DebuggingSoundProblems as separate attachments.

If you are using Jaunty or later this information can be gathered for you automatically using the command apport-collect -p alsa-base 431212

[Launchpad Janitor (janitor)]

[Expired for gst0.10-python (Ubuntu) because there has been no activity for 60 days.]

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