Clean install of Ubuntu 11.04 - No Sound - Speakers pop regularly

[Steve Comrie]

I had previously installed Ubuntu 11.04 on this machine from clean and sound worked fine. I was having video card problems, installed again and now no sound - just pops from my speaker.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: alsa-base 1.0.24+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.39-0.5~20110427-generic 2.6.39-rc5
Uname: Linux 2.6.39-0-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: steve 1785 F.... pulseaudio
 /dev/snd/controlC0: steve 1785 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xfbff8000 irq 16'
   Mixer name : 'Realtek ALC892'
   Components : 'HDA:10ec0892,15658224,00100302'
   Controls : 26
   Simple ctrls : 15
Card1.Amixer.info:
 Card hw:1 'U0x46d0x825'/'USB Device 0x46d:0x825 at usb-0000:00:13.2-3, high speed'
   Mixer name : 'USB Mixer'
   Components : 'USB046d:0825'
   Controls : 2
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 6144
   Mono: Capture 2944 [48%] [17.50dB] [on]
Card2.Amixer.info:
 Card hw:2 'NVidia'/'HDA NVidia at 0xfe77c000 irq 19'
   Mixer name : 'Nvidia GPU 15 HDMI/DP'
   Components : 'HDA:10de0015,10de0101,00100100'
   Controls : 16
   Simple ctrls : 4
Date: Wed May 25 18:37:31 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/19/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080015
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: TA890GXE
dmi.board.vendor: BIOSTAR Group
dmi.chassis.asset.tag: None
dmi.chassis.type: 3
dmi.chassis.vendor: BIOSTAR Group
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080015:bd04/19/2010:svnBIOSTARGroup:pnTA890GXE:pvr:rvnBIOSTARGroup:rnTA890GXE:rvr:cvnBIOSTARGroup:ct3:cvr:
dmi.product.name: TA890GXE
dmi.sys.vendor: BIOSTAR Group

[Luke Yelavich (themuso)]

Thanks for your bug report. Given the symptoms you have described, I am pretty sure this is a duplicate of bug #741825, so I will mark it as such. Please feel free to read that bug to get a better idea of the problem, but in short, recent changes to audio code in Ubuntu 11.04 have exposed a chipset bug.