Public bug reported:
When I had Karmic Koala installed on my laptop, surround sound worked
perfectly. Then, I updated to Lucid Lynx. At first I experienced no
trouble concerning surround sound, but after few updates I lost surround
- now I have only stereo output, and no signal at surround outlets. I
wonder what might have gone wrong, I included some debugging info
collected by apport, if there is any other way I can help diagnosing
this bug, please inform me.
A strange symptom I observed: In gnome-volume-control, in output tab, I
have two sliders: one for panning right-left, and second for front-rear.
The first one works correctly, while the second one not: as I am sliding
it, master volume goes down, quickly but gradually (to zero), and the
slider I moved gets back to center (starting position). I don't know if
it is meaningful information, but I hope it will help.
I have no idea what to think about it, I will help you diagnosing as
much as I can, and I hope this problem will be fixed soon.
ProblemType: Bug
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: cielak 1480 F.... pulseaudio
/dev/snd/pcmC0D0p: cielak 1480 F...m pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xfc500000 irq 22'
Mixer name : 'IDT 92HD73C1X5'
Components : 'HDA:111d7675,102802a0,00100103'
Controls : 16
Simple ctrls : 10
Card1.Amixer.info:
Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfc010000 irq 17'
Mixer name : 'ATI R6xx HDMI'
Components : 'HDA:1002aa01,00aa0100,00100000'
Controls : 4
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Date: Mon Mar 8 22:10:47 2010
DistroRelease: Ubuntu 10.04
NonfreeKernelModules: wl
Package: alsa-base 1.0.22.1+dfsg-0ubuntu3
PackageArchitecture: all
ProcEnviron:
LANG=pl_PL.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-16.24-generic
SelectedCard: 0 Intel HDA-Intel - HDA Intel
SourcePackage: alsa-driver
Symptom: audio
Title: [IDT 92HD73C1X5] ALSA test tone not correctly played back
Uname: Linux 2.6.32-16-generic x86_64
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug lucid
--
[IDT 92HD73C1X5] Surround sound lost after few updates in Lucid Lynx
https://bugs.launchpad.net/bugs/534682
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