Dell XPS One 27: Headphone jack and speakers mutuated after upgrade to 16.04

[Rubeosis]

Dell XPS One 27: Sound working correctly in 14.04. After complete reinstall of 16.04 headphone jack and speakers are mutuated. Manual correction of output level (headphones) with alsamixer leads to a correct sound output.

Same problem here: http://askubuntu.com/questions/810053/speaker-and-headphone-ports-are-switched

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15
Uname: Linux 4.4.0-34-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0c: fabian 3570 F...m pulseaudio
 /dev/snd/controlC0: fabian 3570 F.... pulseaudio
CurrentDesktop: Unity
Date: Wed Aug 10 17:21:18 2016
InstallationDate: Installed on 2016-08-09 (0 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
PackageArchitecture: all
SourcePackage: alsa-driver
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/03/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: 02XMCT
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 13
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 00
dmi.modalias: dmi:bvnDellInc.:bvrA06:bd08/03/2012:svnDellInc.:pnXPSOne2710:pvr00:rvnDellInc.:rn02XMCT:rvrA01:cvnDellInc.:ct13:cvr00:
dmi.product.name: XPS One 2710
dmi.product.version: 00
dmi.sys.vendor: Dell Inc.

[Rubeosis (faspie)]

As a workarount use hda-jack-retask

http://askubuntu.com/questions/832248/sound-is-not-working-in-dell-xps-all-in-one-2710-running-ubuntu-16-04

"Praise of God i could solving the problem by installing "hda-jack-retask" - open the terminal and post: [ sudo apt-get install alsa-tools-gui ] - then post: [ hdajackretask ] in the gui of "jack retasking" i found "green Headphone" set as "headphone" i checked "override" and choose "internal speaker" then i pressed the button "apply now" then "install boot override" then reboot finally, the problem solved ... I'm happy now ... thanks for every one tried to help me ... thank you very much"