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[Raymond <1462545@xxxxxxxxxxxxxxxxxx>]

rear panel jacks were muted when front headphone jack is plugged


active profile: <output:analog-stereo+input:analog-stereo>
	sinks:
		alsa_output.pci-0000_00_1b.0.analog-stereo/#1: Built-in Audio Analog Stereo
	sources:
		alsa_output.pci-0000_00_1b.0.analog-stereo.monitor/#2: Monitor of Built-in Audio Analog Stereo
		alsa_input.pci-0000_00_1b.0.analog-stereo/#3: Built-in Audio Analog Stereo
	ports:
		analog-input-microphone-front: Front Microphone (priority 8500, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-input-microphone-rear: Rear Microphone (priority 8200, latency offset 0 usec, available: no)
			properties:
				device.icon_name = "audio-input-microphone"
		analog-input-linein: Line In (priority 8100, latency offset 0 usec, available: no)
			properties:
				
		analog-output: Analog Output (priority 9900, latency offset 0 usec, available: unknown)
			properties:
				
		analog-output-headphones: Headphones (priority 9000, latency offset 0 usec, available: yes)
			properties:
				device.icon_name = "audio-headphones"


** Changed in: alsa-driver (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1462545

Title:
  [MS-7759, Realtek ALC892, Green Line Out, Rear] Playback problem

Status in alsa-driver package in Ubuntu:
  Incomplete

Bug description:
  I have two 3mm audio jacks (green) on my computer. One in the front
  (attached to the case) and another on the back (attached to the mother
  board). I have headphone connected to the front, and an amp that I've
  been using for a while connected to the back. I dual boot Windows 8.1
  and both jacks work when I'm on Windows. However, on Ubuntu when I
  open the sound options it seems to only recognize the headphones.
  Despite showing two devices, both seem to control the headphones. The
  amp works, but only when I disconnect it from the back and connect it
  to the front port.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu4
  ProcVersionSignature: Ubuntu 3.16.0-38.52~14.04.1-generic 3.16.7-ckt10
  Uname: Linux 3.16.0-38-generic x86_64
  NonfreeKernelModules: fglrx
  ApportVersion: 2.14.1-0ubuntu3.11
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Fri Jun  5 15:33:16 2015
  InstallationDate: Installed on 2015-05-10 (26 days ago)
  InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
  PackageArchitecture: all
  SourcePackage: alsa-driver
  Symptom: audio
  Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed
  Symptom_Card: Built-in Audio - HDA Intel PCH
  Symptom_Jack: Green Line Out, Rear
  Symptom_Type: Only some of outputs are working
  Title: [MS-7759, Realtek ALC892, Green Line Out, Rear] Playback problem
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/07/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: V1.7
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: Z77MA-G45 (MS-7759)
  dmi.board.vendor: MSI
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MSI
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.7:bd11/07/2012:svnMSI:pnMS-7759:pvr1.0:rvnMSI:rnZ77MA-G45(MS-7759):rvr1.0:cvnMSI:ct3:cvr1.0:
  dmi.product.name: MS-7759
  dmi.product.version: 1.0
  dmi.sys.vendor: MSI

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