Re: Audio Hints, T520?

On Sat, May 4, 2013 at 12:28 AM, Waitman Gobble <uzimac_at_da3m0n8t3r.com>wrote:

> On Fri, 03 May 2013 22:22:01 -0700, Sean Bruno <sean_bruno_at_yahoo.com>
> wrote:
>
>
> >
> >On Fri, 2013-05-03 at 22:03 -0700, Waitman Gobble wrote:
> >> what is the output of running the command 'mixer'?
> >
> >$ mixer
> >Mixer vol      is currently set to  95:95
> >Mixer pcm      is currently set to 100:100
> >Mixer speaker  is currently set to 100:100
> >Mixer mic      is currently set to 100:100
> >Mixer rec      is currently set to  67:67
> >Recording source: mic
> >
> >
> >All looks well to me.
> >
> >Sean
> >
>
> I agree. It looks like it should work.
>
> sorry not to have more info to help,
>
> After reading the man page for snd_hda and dev/snd/pcm/dsp.c src I don't
> think
> you *need* hints in /boot/loader.conf to make it work, but you can
> re-arrange
> 'pins' and set auto stuff, like plugging headphones in selects the device.
> i
> think.
>
> here's some stuff to check. I am *guessing* it's 'recording' from a
> different
> pin/device??
>
> on this machine :
>
> [1070] > syscntl hw.snd.default_unit
> hw.snd.default_unit: 3
>
> [1071] > dmesg | grep pcm3
> pcm3: <Realtek ALC887 (Rear Analog)> at nid 20 and 24,26 on hdaa1
>
> [1072] > sysctl -a | grep nid20
> dev.hdaa.1.nid20: pin: Line-out (Green Jack)
> dev.hdaa.1.nid20_config: 0x01014410 as=1 seq=0 device=Line-out conn=Jack
> ctype=1/8 loc=Rear color=Green misc=4
> dev.hdaa.1.nid20_original: 0x01014410 as=1 seq=0 device=Line-out conn=Jack
> ctype=1/8 loc=Rear color=Green misc=4
>
> [1073] > sysctl -a | grep nid24
> dev.hdaa.1.nid24: pin: Mic (Pink Jack)
> dev.hdaa.1.nid24_config: 0x01a19c40 as=4 seq=0 device=Mic conn=Jack
> ctype=1/8
> loc=Rear color=Pink misc=12
> dev.hdaa.1.nid24_original: 0x01a19c40 as=4 seq=0 device=Mic conn=Jack
> ctype=1/8 loc=Rear color=Pink misc=12
>
> I think there's probably a pink jack on the back of the machine where i can
> plug up a mic.
>
>  a thought, did you already experiment to see if you can record something
> from
> oss /dev/dsp devices?
> I browsed through the source but I don't understand, at the moment, how to
> 'know' which /dev/dsp maps to pcm.
>
> [1044] > ls /dev/dsp*
> /dev/dsp0.1     /dev/dsp2.1     /dev/dsp4.1
> /dev/dsp1.1     /dev/dsp3.1     /dev/dsp5.1
>
> (based on previous matthias post)
> [1045] > dd if=/dev/dspN of=/tmp/bite
> [1046] > cat /tmp/bite > /dev/dspOUT_DEVICE
>
>
>From my /boot/loader.conf:
# Load the sound driver
snd_hda_load="YES"
# and setup headphones
# Out : speaker + headphones
hint.hdac.0.cad0.nid25.config="as=1 seq=15"
# In : mic + external mic
hint.hdac.0.cad0.nid35.config="as=2"
hint.hdac.0.cad0.nid27.config="as=2 seq=15"

Works on my T520.
-- 
R. Kevin Oberman, Network Engineer
E-mail: rkoberman_at_gmail.com