2011/4/7 Gabriel Schulhof nix@go-nix.ca
Hi!
My mom has a laptop with the following sound card:
lspci: 00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA) (rev 40)
driver: snd_hda_intel
alsamixer: Card: HDA ATI SB Chip: Conexant CX20585
I can't record from this card no matter what I try. It seems that alsamixer has a lot of options:
Mic B <Capture switch> Mic C <Capture switch> Mic E <Capture switch> Mic F <Capture switch> Capture <0% -- 100% slider> Analog Mic Boost <0 db -- 40 db slider with 10 db increment>
I have tried to record from each mic in turn, I have tried the different boost levels (0 db - 40 db), but I have had no luck picking up anything. I have attached an external mic to the line-in, but no difference.
When I say "I have tried to record" I mean that I logged into her computer, chose one of the mics from the above list, and then I told my mom to say something while looking at the input sound level indicator in the GNOME sound settings panel. On other computers, I have found this a sufficient indication of whether the mic works.
Is this inability to record a known limitation of this sound card? If not, is there some special setting I have to modify to make it work?
Please find attached the output from alsa-info.
TIA for your help,
you need to find a model which 1) support internal mic at 0x23 2) enable unsolicted mic event at mic jack 0x1b 3) enable unsolicted hp event at HP jack 0x19
cxt5066_capture_source has "Mic B" , "Mic C" , "Mic E" and "Mic F" for 0x1a 0x1b 0x1d 0x1e at node [audio selector] 0x17 and it cannot handle internal mic at 0x23
cxt5066 has five connection at 0x14
/* Node 14 connections: 0x17 0x18 0x23 0x24 0x27 */
but cxt20585 has only four connection
0x17* 0x18 0x23 0x24