[alsa-devel] Testing/Debugging alc668 with ASUS N750JK

[Patrick Shirkey]

Hi,

What is the best way to test/debug the alc668 driver these days?

I am running kernel 3.14.1 (debian testing/sid).

The laptop is an ASUS N750JK.

Sound works for front left/right speakers but the back speakers and
external lfe channel is not working on this laptop.

- I have found a couple of kernel bug reports  for other ASUS models with
this chipset but they are both marked resolved. Should I open a new ticket
?

https://bugzilla.kernel.org/show_bug.cgi?id=65091
https://bugzilla.kernel.org/show_bug.cgi?id=66271

- I can hear static through the front speakers (with pulseaudio test)  if
I set pins 0x19 and 0x1a to Line Out (Center/LFE) and Internal
(Center/LFE) or vice versa with hdajackretask.

Pin 0x16 does not appear to work at all.

I see this output when I apply the config in hdajackretask.

0x12 0x90a60140
0x14 0x99130110
0x15 0x04211020
0x16 0x99134111
0x18 0x01a19840
0x19 0x01014011
0x1a 0x411111f0
0x1b 0x411111f0
0x1d 0x40c6852d
0x1e 0x014b1180
0x1f 0x411111f0
1






--
Patrick Shirkey
Boost Hardware Ltd