[alsa-devel] [PATCH] ALSA: hda - add mic fixup for ALC269VB on Ordissimo EVE2

[Takashi Iwai]

At Thu, 6 Jun 2013 18:14:58 +0200,
Anisse Astier wrote:
> 
> On Thu, 06 Jun 2013 11:49:00 +0200, Takashi Iwai <tiwai at suse.de> wrote :
> 
> > At Wed, 5 Jun 2013 17:36:43 +0200,
> > Anisse Astier wrote:
> > > 
> > > On Wed, 05 Jun 2013 12:26:59 +0200, Takashi Iwai <tiwai at suse.de> wrote :
> > > 
> > > > > I'm on a dead end on this computer, I can't seem to find how the mic jack
> > > > > presence works. It's always on(presence detected whatever the status) on NID
> > > > > 0x18, the one used for the external mic. I have tried every NID, manually
> > > > > enabling pin_sense on each, but only the headphone jack detection works. The
> > > > > mic sense is nowhere to be seen.  
> > > > 
> > > > I also don't know any other method for Realtek.  For IDT codecs, there
> > > > are some devices with GPIO unsol events, but Realtek codecs seem to
> > > > use only the normal pin detection unsol events.
> > > > 
> > > > So, on your device, GET_PIN_SENSE doesn't return the detection bit
> > > > set?  You tried setting SET_PIN_SENSE before GET_PIN_SENSE, right?
> > > > 
> > > 
> > > I did more tests, this time using hda-verb directly instead of
> > > hda-analyzer tools. And GET_PIN_SENSE does return the correct value…
> > > sometimes. (without the need for SET_PIN_SENSE)
> > > It seems the value is correct only if queried once every 10 to 15
> > > seconds.
> > 
> > Does this mean that it gives a wrong result (i.e. no detect bit
> > although plugged, or vice versa)?  Also, is the unsol event issued per
> 
> It means it gives detect bit (most of the time) although unplugged.
> 
> > jack plug/unplug?  If so, is the detection correct just after the
> > unsol event?
> 
> I don't know yet. From what I observed for now:
>  - there are multiple events in a row. 
>  - the event is issued for unplugs, everytime. For plugs, it's only
>    issued sometimes, if we wait long enough.
>  - when unpluged, we get unsol events every 10 seconds or so, even when
>    doing nothing.
> 
> To gather more information I added some printfs:

FYI, you can track the tracepoints instead of printks.
See HD-Audio.txt "Tracepoints" section.


Takashi