[alsa-devel] ALC892, Clevo P150HM: Input Source gets reset to "Mic" every resume

Raymond Yau superquad.vortex2 at gmail.com
Fri Dec 9 14:32:42 CET 2011

2011/12/4 Julian Sikorski <belegdol at gmail.com>:
> Hi,
> whenever I resume the machine, the Input Source would get changed back
> from "Internal Mic" to "Mic". This is a bit annoying, because pulseaudio
> is unaware of that change. As a result, everything looks fine in
> pavucontrol but no sound gets recorded. A quick look at alsamixer -c0
> revealed the problem. My alsa info:
> http://www.alsa-project.org/db/?f=c5776b615a5f3b9ae624e4250fb0c2b69118ce26
> This is unrelated to the other problems I have been reporting, since
> this happens on a mostly-stock Fedora 3.1.2 kernel (the patch I added
> deals with xhci, not alsa).

The problem seem can be reproduced by using hda-emu,
it is init_capsrc_for_pin() and alc_auto_init_input_src() write value
to cache before snd_hda_codec_resume_app() from cache

> get 28
28 Input Source:0
ITEM: 0:Mic, 1:Internal Mic, 2:Line, VAL: [Mic]
> set 28 1
send: NID=0x23, VERB=0x360(set_amp_gain_mute,I:L#0), PARM=0x80
send: NID=0x23, VERB=0x350(set_amp_gain_mute,I:R#0), PARM=0x80
send: NID=0x23, VERB=0x361(set_amp_gain_mute,I:L#1), PARM=0x0
send: NID=0x23, VERB=0x351(set_amp_gain_mute,I:R#1), PARM=0x0
> get 28
28 Input Source:0
ITEM: 0:Mic, 1:Internal Mic, 2:Line, VAL: [Internal Mic]


init_capsrc_for_pin 18
send: NID=0x23, VERB=0xb20(get_amp_gain_mute,I:L#0), PARM=0x0
receive: 0x0
send: NID=0x23, VERB=0xb00(get_amp_gain_mute,I:R#0), PARM=0x0
receive: 0x0
init capsrc for pin 19
send: NID=0x23, VERB=0xb20(get_amp_gain_mute,I:L#0), PARM=0x1
receive: 0x80
send: NID=0x23, VERB=0x361(set_amp_gain_mute,I:L#1), PARM=0x0
send: NID=0x23, VERB=0xb00(get_amp_gain_mute,I:R#0), PARM=0x1
receive: 0x80
send: NID=0x23, VERB=0x351(set_amp_gain_mute,I:R#1), PARM=0x0
init capsrc for pin 1a
send: NID=0x23, VERB=0xb20(get_amp_gain_mute,I:L#0), PARM=0x2
receive: 0x80
send: NID=0x23, VERB=0x362(set_amp_gain_mute,I:L#2), PARM=0x0

send: NID=0x23, VERB=0x361(set_amp_gain_mute,I:L#1), PARM=0x80
send: NID=0x23, VERB=0x351(set_amp_gain_mute,I:R#1), PARM=0x80
send: NID=0x23, VERB=0x362(set_amp_gain_mute,I:L#2), PARM=0x80
send: NID=0x23, VERB=0x352(set_amp_gain_mute,I:R#2), PARM=0x80

send: NID=0x23, VERB=0x363(set_amp_gain_mute,I:L#3), PARM=0x80
send: NID=0x23, VERB=0x353(set_amp_gain_mute,I:R#3), PARM=0x80
send: NID=0x23, VERB=0x364(set_amp_gain_mute,I:L#4), PARM=0x80
send: NID=0x23, VERB=0x354(set_amp_gain_mute,I:R#4), PARM=0x80
send: NID=0x23, VERB=0x365(set_amp_gain_mute,I:L#5), PARM=0x80
send: NID=0x23, VERB=0x355(set_amp_gain_mute,I:R#5), PARM=0x80
send: NID=0x23, VERB=0x366(set_amp_gain_mute,I:L#6), PARM=0x80
send: NID=0x23, VERB=0x356(set_amp_gain_mute,I:R#6), PARM=0x80
send: NID=0x23, VERB=0x367(set_amp_gain_mute,I:L#7), PARM=0x80
send: NID=0x23, VERB=0x357(set_amp_gain_mute,I:R#7), PARM=0x80
send: NID=0x23, VERB=0x368(set_amp_gain_mute,I:L#8), PARM=0x80
send: NID=0x23, VERB=0x358(set_amp_gain_mute,I:R#8), PARM=0x80
send: NID=0x23, VERB=0x369(set_amp_gain_mute,I:L#9), PARM=0x80
send: NID=0x23, VERB=0x359(set_amp_gain_mute,I:R#9), PARM=0x80
send: NID=0x23, VERB=0x36a(set_amp_gain_mute,I:L#10), PARM=0x80
send: NID=0x23, VERB=0x35a(set_amp_gain_mute,I:R#10), PARM=0x80

> get 28
28 Input Source:0
ITEM: 0:Mic, 1:Internal Mic, 2:Line, VAL: [Mic]

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