Speakers do not auto mute when i plug in headphones (front jack)

Using: Audio device: Advanced Micro Devices, Inc. [AMD/ATI] SBx00 Azalia (Intel HDA) for both speakers and headphones.

If i plug in headphones the speakers are still playing and dont automute. Also headphones themselves seems to be muted. If i correct that via alsamixer, you can hear sound via both speakers and headphones.

This seems to have worked fine with Ubuntu 14.04 with 3.13 kernel. By testing i have found that this started happening in 3.14 kernel (via ubuntu ppa). I also tested kernel 4.4 where the problem still happens.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.2.0-27-generic 4.2.0-27.32
ProcVersionSignature: Ubuntu 4.2.0-27.32-generic 4.2.8-ckt1
Uname: Linux 4.2.0-27-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: svoboa 1409 F.... pulseaudio
 /dev/snd/controlC0: svoboa 1409 F.... pulseaudio
 /dev/snd/controlC2: svoboa 1409 F.... pulseaudio
CurrentDesktop: Unity
Date: Sat Feb 6 12:57:36 2016
HibernationDevice: RESUME=UUID=8e1b8b21-2592-4a26-bbd8-cd849b309353
InstallationDate: Installed on 2016-02-06 (0 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
IwConfig:
 enp2s0 no wireless extensions.

 lo no wireless extensions.
MachineType: Gigabyte Technology Co., Ltd. GA-MA770T-UD3
ProcFB: 0 nouveaufb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-27-generic root=UUID=558b9390-2b24-4295-b105-5dde14b42379 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-4.2.0-27-generic N/A
 linux-backports-modules-4.2.0-27-generic N/A
 linux-firmware 1.149.3
RfKill:

SourcePackage: linux
UdevLog: Error: [Errno 2] Adresář nebo soubor neexistuje: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/22/2011
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F10
dmi.board.name: GA-MA770T-UD3
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF10:bd03/22/2011:svnGigabyteTechnologyCo.,Ltd.:pnGA-MA770T-UD3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-MA770T-UD3:rvr:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr:
dmi.product.name: GA-MA770T-UD3
dmi.sys.vendor: Gigabyte Technology Co., Ltd.