[Realtek ALC1200] ALSA test tone not correctly played back on built in speakers

[KAMI]

Since few days I have not working speakers in my ASUS X71 laptop. If I connect headphones it is okay. Of course every channel is unmuted and has a maximal volume. It worked well last week. Could you fix it?

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: alsa-base 1.0.23+dfsg-1ubuntu4
ProcVersionSignature: Ubuntu 2.6.35-22.33-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: kami 1706 F.... pulseaudio
 /dev/snd/pcmC0D0p: kami 1706 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfebf8000 irq 48'
   Mixer name : 'Realtek ALC1200'
   Components : 'HDA:10ec0888,10431765,00100101 HDA:10573055,10431316,00100700'
   Controls : 27
   Simple ctrls : 16
Card1.Amixer.info:
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfdeec000 irq 50'
   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: Sat Oct 2 07:54:31 2010
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha i386 (20100831.2)
PackageArchitecture: all
ProcEnviron:
 LANG=hu_HU.utf8
 SHELL=/bin/bash
SelectedCard: 0 Intel HDA-Intel - HDA Intel
SourcePackage: alsa-driver
Symptom: audio
Title: [Realtek ALC1200] ALSA test tone not correctly played back
dmi.bios.date: 08/06/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 206
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: X71Sr
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr206:bd08/06/2008:svnASUSTeKComputerInc.:pnX71Sr:pvr1.0:rvnASUSTeKComputerInc.:rnX71Sr:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: X71Sr
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.

[Launchpad Janitor (janitor)]

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

[Marcus Tomlinson (marcustomlinson)]

This release of Ubuntu is no longer receiving maintenance updates. If this is still an issue on a maintained version of Ubuntu please let us know.

[Launchpad Janitor (janitor)]

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