HP zBook 15u dock station audio is not working

[Ippolitov Igor]

Hello, everyone.

I have an HP zBook 15u laptop with an HP slim dockstation and had a trouble with sound from the dock: dock has two separate jacks, one for line in and one for line out
I solved it with pin retasking for 0x1b (out) and 0x18 (in)

Here is my final configuration:

#: sudo hdajacksensetest -c 1 -a
Pin 0x12 (Internal Mic): present = No
Pin 0x13 (Not connected): present = No
Pin 0x14 (Internal Speaker): present = No
Pin 0x15 (Black Headphone, Right side): present = No
Pin 0x16 (Not connected): present = No
Pin 0x17 (Not connected): present = No
Pin 0x18 (Black Mic, Docking station, Rear side): present = Yes
Pin 0x19 (Not connected): present = No
Pin 0x1a (Black Mic, Right side): present = No
Pin 0x1b (Black Line Out, Docking station, Rear side): present = Yes
Pin 0x1d (Not connected): present = No
Pin 0x1e (Not connected): present = No

and this is the output for the alsa-info.sh script (0x18 may be listed as AUX):
http://www.alsa-project.org/db/?f=b1381c8e2468a2928b0768cc66c2c02c3c0ca465

Can't decide if Pin 0x18 should be AUX or mic...

Could someone please push this fix into a package (not sure which one)?

Additionally, with this fix, I have a very short scratching noise on each boot. Is there anything I can do to fix this?

I'm ready to test any additional solutions if needed.
Thanks in advance.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 4.4.0-38.57-generic 4.4.19
Uname: Linux 4.4.0-38-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: XFCE
Date: Tue Sep 27 13:13:15 2016
InstallationDate: Installed on 2016-01-15 (255 days ago)
InstallationMedia: Xubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaRecordingTest: ALSA recording test through plughw:PCH failed
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Type: Only some of inputs are working
Title: [HDA-Intel - HDA Intel PCH, recording] Recording problem
UpgradeStatus: Upgraded to xenial on 2016-08-03 (55 days ago)
dmi.bios.date: 11/05/2015
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: M71 Ver. 01.12
dmi.board.name: 2216
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 96.58
dmi.chassis.asset.tag: 5CG53721SX
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvrM71Ver.01.12:bd11/05/2015:svnHewlett-Packard:pnHPZBook15uG2:pvrA3009D510303:rvnHewlett-Packard:rn2216:rvrKBCVersion96.58:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ZBook 15u G2
dmi.product.version: A3009D510303
dmi.sys.vendor: Hewlett-Packard