Hi! Sorry for the late response! On Tue, March 8, 2011 05:44, David Henningsson wrote: > On 2011-03-08 00:26, Colin Guthrie wrote: >> 'Twas brillig, and Gabriel Schulhof at 07/03/11 19:56 did gyre and gimble: >>> 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 more options than pulseaudio: >>> 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> >>> Nevertheless, I will attach the output from pacmd list-sources. 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? TIA for your help, >> Some mics do this weird out-of-phase thing whereby the recording level is effectively 0 when the stereo volume is synced. If you set left to say 5% and right to say 95% then it works fine. >> This may be the case with your h/w too. >> FWIW The "extra" options you see in ALSA are generally confusing and useless. PA attempts to consolidate it and make it a lot more user friendly. >> Normally you'd get a list of several "port" selectors in >> gnome-volume-control. Sadly as your card uses the incredibly helpful names of "Mic B" through "Mic F" these do not match the various "standard" names we probe for. >> David, have you come across this model on your travels? > > Many times, that's the fallback for many Conexants. > >> Any ideas on how >> we could best support it? > > This one is one of few that lack an auto-parser of the pin default config, so for now - model quirks. Without seeing alsa-info or something similar, I can't tell which model would fit. Please find it attached. > > In the long run we would benefit from an autoparser handling these as well. TIA for any advice, Gabriel -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: alsa-info.txt URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20110407/f0268a26/attachment.txt>
