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** Changed in: alsa-driver (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/991957
Title:
[1005PE, Realtek ALC269, Mic, Internal] Mic regression form oneiric:
crackling sound, background noise, difficult switching with external
mic
Status in alsa-driver package in Ubuntu:
Incomplete
Bug description:
I used alsa-dkms driver with Oneiric, and mics do work correctly. I
had clean sound, and two different devices (internal and external)
with different adjustable levels. See
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/898081
After upgrade, mic was really noisy and crackling. Adding "options
snd-hda-intel position_fix=2" to /etc/modprobe.d/alsa-base.conf
corrected the worst crackling, but the mic is still very noisy, and
moreover, I have only one mic setting available, which creates a
problem given that the levels of the two devices is very different.
Using the alsa-daily PPA gave a totally broken configuration, no sound
at all.
Said that, the mic is usable with the position_fix=2 quirk added, but
I report this nevertheless, as requested.
That seems related to
https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/927961
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu7
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: romano 1840 F.... pulseaudio
/dev/snd/pcmC0D0c: romano 1840 F...m pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf7cf8000 irq 46'
Mixer name : 'Realtek ALC269'
Components : 'HDA:10ec0269,104383ce,00100004'
Controls : 18
Simple ctrls : 10
CurrentDmesg: [ 983.429598] composite sync not supported
Date: Mon Apr 30 15:33:02 2012
InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386
(20100429.4)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingTest: ALSA recording test through plughw:Intel failed
Symptom_Card: Built-in Audio - HDA Intel
Symptom_Jack: Mic, Internal
Symptom_Type: High background noise, or volume is too low
Title: [1005PE, Realtek ALC269, Mic, Internal] Background noise or low volume
UpgradeStatus: Upgraded to precise on 2012-04-28 (1 days ago)
dmi.bios.date: 06/23/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1202
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: 1005P
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: x.xx
dmi.chassis.asset.tag: 0x00000000
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer INC.
dmi.chassis.version: x.x
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1202:bd06/23/2010:svnASUSTeKComputerINC.:pn1005PE:pvrx.x:rvnASUSTeKComputerINC.:rn1005P:rvrx.xx:cvnASUSTeKComputerINC.:ct10:cvrx.x:
dmi.product.name: 1005PE
dmi.product.version: x.x
dmi.sys.vendor: ASUSTeK Computer INC.
mtime.conffile..etc.modprobe.d.alsa.base.conf: 2012-04-30T15:07:42.189177
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