Comment 0 for bug 1037820

Speakers stay on in Ubuntu 12.04 when headphones are plugged into the jack. (Acer Aspire 6920G, ICH8 chipset, ALC262 audio). All was working fine in 11.10. There also appears to be no way to mute the speakers while keeping the headphones on.
If I boot up with the headphones already in the port, the sound only comes out of those. However, removing them doesn't make the sound switch to the speakers, as it used to and as it should.

Linux gidan-notebook 3.2.0-29-generic #46-Ubuntu SMP Fri Jul 27 17:03:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-29-generic 3.2.0-29.46
ProcVersionSignature: Ubuntu 3.2.0-29.46-generic 3.2.24
Uname: Linux 3.2.0-29-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu12
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: gidan 2310 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfc300000 irq 48'
   Mixer name : 'Realtek ALC889'
   Components : 'HDA:10ec0889,10250146,00100004 HDA:11c11040,10250146,00100200'
   Controls : 33
   Simple ctrls : 19
Date: Fri Aug 17 00:38:28 2012
HibernationDevice: RESUME=UUID=5d28ae79-1f15-447a-a660-2085428d7152
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: Acer Aspire 6920
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-29-generic root=UUID=7c845f9d-d485-44d7-86fb-7ddc0e5891bf ro splash quiet vga=786 quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-29-generic N/A
 linux-backports-modules-3.2.0-29-generic N/A
 linux-firmware 1.79
SourcePackage: linux
UpgradeStatus: Upgraded to precise on 2012-05-21 (87 days ago)
WifiSyslog:

dmi.bios.date: 01/22/10
dmi.bios.vendor: Acer
dmi.bios.version: V1.16
dmi.board.name: Aspire 6920
dmi.board.vendor: Acer
dmi.board.version: Aspire 6920
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAcer:bvrV1.16:bd01/22/10:svnAcer:pnAspire6920:pvrAspire6920:rvnAcer:rnAspire6920:rvrAspire6920:cvnAcer:ct10:cvrN/A:
dmi.product.name: Aspire 6920
dmi.product.version: Aspire 6920
dmi.sys.vendor: Acer