At Tue, 3 Nov 2009 14:30:15 -0500, Shawn Starr wrote:
On November 3, 2009 05:55:07 am Takashi Iwai wrote:
At Mon, 2 Nov 2009 11:36:21 -0500,
Shawn Starr wrote:
On November 2, 2009 08:05:37 am Takashi Iwai wrote:
At Thu, 29 Oct 2009 18:59:40 -0400,
Shawn Starr wrote:
Hello ALSA developers,
I am having problems with the microphone on the following hardware this is on a Lenovo W500 laptop.
Card: HDA Intel Chip: Conexant CX20561 (Hermosa)
Here is the problems im noticing:
- If I use ALSA 'default' with the microphone I get noise
interference on output [high/low/high/low].
If I switch this to use the "ALSA Capture on HDA Intel [CONEXANT Analog] I get interference except it is the standard 60Hz electrical noise [steady noise]
- Using the internal/external microphones gives an inconsistent
volume. It also does not seem to work with the microphone cutting out so much. I need to adjust Digital + another microphone but it still drops capturing.
Alsamixer shows: Digital/Docking Microphone/External Microphone/Internal Microphone
Here is the module options I give to the sound driver:
options snd-intel-hda enable_msi=1 power_save=10 power_save_controller=true model=laptop index=0
Assuming power saving/controller causes the microphone to cut out or not.
- I'm now aware that this card has no pinouts for PCM capture
Could you give alsa-info.sh output? Run with --no-upload option, and attach the generated file.
Here's the attached output,
Judging from the pin config, in your case, "Docking" seems controlling the external-mic volume. The "External Mic Volume" should be zero.
There is still problems with the volume sensitivity, but I will adjust to set ext mic to zero. Do we need a quirk for the Lenovo W500 then?
Looks so. Though, the SSID is identical with X200. I'm wondering whether X200 works fine as is or not...
Or that's a bug wrt to volume sensitivity and static interferences?
The mic boost volumes are missing in these quirks. You can adjust manually via hda-verb, e.g.
hda-verb /dev/snd/hwC0D0 0x1d SET_AMP 0x7003
for the built-in mic, and
hda-verb /dev/snd/hwC0D0 0x18 SET_AMP 0x7003
for the mic jack. Change the value between 0x7000 and 0x7004.
Takashi