Realtek ALC889 Surround problem (on Acer Aspire 8930g)

Bug #580498 reported by Christian Juner on 2010-05-14
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
alsa-driver (Ubuntu)
Undecided
Unassigned

Bug Description

Surround sound does not work. Alsamixer shows no controls for any front or rear or any other surround mixers. Pulseaudio only lists stereo as an option.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: alsa-base 1.0.22.1+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion:
 Advanced Linux Sound Architecture Driver Version 1.0.22.1.
 Compiled on Apr 29 2010 for kernel 2.6.32-22-generic (SMP).
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: firstadmin 1821 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xdb300000 irq 31'
   Mixer name : 'Nvidia MCP78 HDMI'
   Components : 'HDA:10ec0889,10250145,00100004 HDA:11c11040,10250145,00100200 HDA:10de0006,10de0101,00100000'
   Controls : 32
   Simple ctrls : 17
Date: Fri May 14 15:01:39 2010
EcryptfsInUse: Yes
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SelectedCard: 0 Intel HDA-Intel - HDA Intel
SourcePackage: alsa-driver
Symptom: audio
Title: [Realtek ALC889] Surround problem
dmi.bios.date: 08/07/2008
dmi.bios.vendor: Acer
dmi.bios.version: V1.05
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Aspire 8930
dmi.board.vendor: Acer
dmi.board.version: PSMBOU-1234567
dmi.chassis.type: 1
dmi.chassis.vendor: Acer
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAcer:bvrV1.05:bd08/07/2008:svnAcer:pnAspire8930:pvrV1.05:rvnAcer:rnAspire8930:rvrPSMBOU-1234567:cvnAcer:ct1:cvrN/A:
dmi.product.name: Aspire 8930
dmi.product.version: V1.05
dmi.sys.vendor: Acer

Note this was the case with "options snd-hda-intel model=auto" set in /etc/modprobe.d/alsa-base.

With "options snd-hda-intel model=acer-aspire-8930g", surround does work, however external mics have stopped working Bug #580508.

Raymond (superquad-vortex2) wrote :

send email to the author if model acer aspire 8930g does not work as expected

http;//git.kernel.org/?p=linux/kernel/git/tiwai/sound.git;a=commit;h=018df41861475595a51d327b83fb5830462f7a53

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