Public bug reported:
I launched ubuntu tryout from CD-ROM drive, tried to run system tests
from System > Administration menu, initial sound playback test worked
correctly, then I skipped the earphone tests, then in internal
microphone test, after speaking for a while there was no sound playback:
I then tried the sound recorder application, and that was not working. I
then changed the internal audio input volume to the max 100% level, and
the test worked fine. Hence I think the system is setting the default
input level to a too low level which means no sound will be recorded
unless the user changes the input level
Description: Ubuntu maverick (development branch)
Release: 10.10
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
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf5e00000 irq 48'
Mixer name : 'Realtek ALC269'
Components : 'HDA:10ec0269,104d4600,00100004'
Controls : 12
Simple ctrls : 7
Card1.Amixer.info:
Card hw:1 'Generic'/'HD-Audio Generic at 0xf0040000 irq 49'
Mixer name : 'ATI R6xx HDMI'
Components : 'HDA:1002aa01,104d4600,00100200'
Controls : 4
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'IEC958',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
CheckboxCommand: alsa_record_playback
CheckboxDescription:
Disconnect any external microphones that you have plugged in. Click the Test
button, then speak into your internal microphone. After a few seconds, your
speech will be played back to you.
Did you hear your speech played back?
CheckboxTest: alsa_record_playback_internal
Date: Sun Oct 10 17:00:27 2010
LiveMediaBuild: Ubuntu 10.10 "Maverick Meerkat" - Release Candidate i386
(20100928)
PackageArchitecture: all
ProcEnviron:
SHELL=/bin/bash
LANG=en_US.UTF-8
SourcePackage: alsa-driver
dmi.bios.date: 07/20/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R0300Y8
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrR0300Y8:bd07/20/2010:svnSonyCorporation:pnVPCEB1Z0E:pvrC604KGZZ:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCEB1Z0E
dmi.product.version: C604KGZZ
dmi.sys.vendor: Sony Corporation
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug audio checkbox-bug i386 maverick
--
Vaio VPCEB1Z0E: internal microphone test fails because default microphone level
too low
https://bugs.launchpad.net/bugs/657799
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