[Bug 658032] [NEW] continuous noise from internal speakers

[Patty Langasek]

Public bug reported:

Since upgrading to 10.04, internal speakers have produced loud,
continuous static noise, which goes away if an external device
(headphones or external speakers) are plugged in. Noise returns
immediately on removing the external device and begins even on
intialization after a reboot or power down.  The only way to get rid of
it is by muting the output.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-25-generic 2.6.32-25.44
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-25.44-generic 2.6.32.21+drm33.7
Uname: Linux 2.6.32-25-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
   Subdevices: 2/2
   Subdevice #0: subdevice #0
   Subdevice #1: subdevice #1
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  harmoney   1719 F.... pulseaudio
 /dev/snd/pcmC0D0p:   harmoney   1719 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfe020000 irq 17'
   Mixer name	: 'Analog Devices AD1984'
   Components	: 'HDA:11d41984,17aa20d6,00100400'
   Controls      : 30
   Simple ctrls  : 19
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7MHT24WW-1.02'
   Mixer name	: 'ThinkPad EC 7MHT24WW-1.02'
   Components	: ''
   Controls      : 1
   Simple ctrls  : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Date: Sun Oct 10 18:05:18 2010
HibernationDevice: RESUME=UUID=bd0eb6d7-98ad-48de-84de-16cda961fa70
MachineType: LENOVO 7675CTO
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: root=/dev/mapper/hostname-root ro quiet splash
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34.1
SourcePackage: linux
WpaSupplicantLog:
 
dmi.bios.date: 10/22/2007
dmi.bios.vendor: LENOVO
dmi.bios.version: 7NET29WW (1.10 )
dmi.board.name: 7675CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr7NET29WW(1.10):bd10/22/2007:svnLENOVO:pn7675CTO:pvrThinkPadX61:rvnLENOVO:rn7675CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 7675CTO
dmi.product.version: ThinkPad X61
dmi.sys.vendor: LENOVO

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug audio i386 lucid needs-upstream-testing regression-release

-- 
continuous noise from internal speakers
https://bugs.launchpad.net/bugs/658032
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