Utuntu 14.10 Beats Audio setting on HP Envy 17-j100

the sound system provided by Beats Audio in HP Envy 17 laptop is quite good if we are using pre-installed Windows8.1,
But I tried to use this system with Ubuntu 14.10.

This trial is not easy and so many users in the world are doing several trial of the settings, but very few are reached to the final solution.

I searched the use cases of this in the articles of Ubuntu forum and found out there are three or more numbers of the setting using HDA Jack retask.

This means the setting of the solution for HP Envy laptop is not fixed or we have to find the combination of the setting of the parameter for our own PC.
Because hardware circuits of HP Envy laptop is not fixed, thus there are several hardware circuits in their lineup of Envy high audio series.

My current setting is tentative one but I reviewed my setting works on my PC.
I can hear two front speakers, two rear under-display speakers and one sub woofer are working on 5.1 digital sorround.

The setting of HDA_Jack_retask are shown below.



Select a codec: IDT
0x0c line out fronIDt
0x0d line out back
0x0e internal speaker
0x0f internal speaker
0x10 internal speaker(LFE)

I was doing cut-and-try and found 0x10 port is for Sub-woofer.
In my current setting Front speakers are assigned to under-display speakers and rear-speakers are assined to keyboard-from speakers.

I don't use 4.1 sorround system but normal internal analog speakers setting in Ubuntu sound setting.

I don't install boot override yet.