Toshiba P205D-S7454 laptop, built-in microphone not working

[Ralph L. Cash]

I do not know if this is a bug, or inability to handle the built-in microphone on this laptop, but I cannot use the microphone.

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: ralphelee 1478 F.... pulseaudio
 /dev/snd/pcmC0D0p: ralphelee 1478 F...m pulseaudio
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xf8700000 irq 16'
   Mixer name : 'Realtek ALC268'
   Components : 'HDA:11c11040,11790001,00100200 HDA:10ec0268,1179ff08,00100003'
   Controls : 22
   Simple ctrls : 13
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: Mon Oct 4 18:22:09 2010
InstallationMedia: 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: 02/25/2008
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V1.40
dmi.board.name: JASAA
dmi.board.vendor: TOSHIBA
dmi.board.version: 1.00
dmi.chassis.asset.tag: *
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnTOSHIBA:bvrV1.40:bd02/25/2008:svnTOSHIBA:pnSatelliteP205D:pvrPSPBLU-017009:rvnTOSHIBA:rnJASAA:rvr1.00:cvnTOSHIBA:ct10:cvrN/A:
dmi.product.name: Satellite P205D
dmi.product.version: PSPBLU-017009
dmi.sys.vendor: TOSHIBA