No sound from headphones after Pangolin upgrade

[markpaterson]

Sound worked fine in Oneric. After upgrading to Pangolin last night, there is no longer any output from the headphone jack. Opening up alsamixer shows a headphone output detected and unmuted, but the volume is fixed at zero.
Sound works properly under Pangolin with the Oneiric kernel (3.0.0-17-generic).

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 x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269VB Analog [ALC269VB Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: mark 2753 F.... pulseaudio
 /dev/snd/controlC0: mark 2753 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xdc600000 irq 54'
   Mixer name : 'Realtek ALC269VB'
   Components : 'HDA:10ec0269,10431a13,00100100'
   Controls : 24
   Simple ctrls : 13
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xd6080000 irq 17'
   Mixer name : 'Nvidia GPU 11 HDMI/DP'
   Components : 'HDA:10de0011,10de0101,00100100'
   Controls : 24
   Simple ctrls : 4
Date: Fri Apr 27 22:27:22 2012
InstallationMedia: Linux Mint 12 "Lisa" - Release amd64 (20111120)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel failed
Symptom_Card: Built-in Audio - HDA Intel
Symptom_Jack: Green Headphone Out, Rear
Symptom_Type: Only some of outputs are working
Title: [G73Jw, Realtek ALC269VB, Green Headphone Out, Rear] Playback problem
UpgradeStatus: Upgraded to precise on 2012-04-27 (0 days ago)
dmi.bios.date: 01/27/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: G73Jw.205
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: G73Jw
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrG73Jw.205:bd01/27/2011:svnASUSTeKComputerInc.:pnG73Jw:pvr1.0:rvnASUSTeKComputerInc.:rnG73Jw:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: G73Jw
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.

[markpaterson (markpaters)]

I take back what I said about sound working properly using Pangolin with the Oneiric kernel. With the Pangolin kernel, the sound does not work at all through the headphone jack; with Pangolin and the Oneiric kernel, the sound will often cut out part of the way through a song, but will reappear at the start of a new song. This might or might not be a separate bug :O

[markpaterson (markpaters)]

OK, the behavior reported in #2 appears to be a rhythmbox bug. I'll file that separately.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[David Raid (davidraid)]

I'm having the same problem. I've noticed that if I have the headphones plugged in when the machine is turned off and then boot up with them in, sound will come out of them and not the speakers. However, removing them will not restore sound to the speakers. When booted up without them, plugging them in does result in sound coming out of the headphones, however sound will still come out of the speakers.

Never had this problem before Precise. Very odd.

[markpaterson (markpaters)]

For me, it looks like this is a duplicate of Bug 978880, so I have marked it as such.