On Thu, 9/11/14, Takashi Iwai tiwai@suse.de wrote:

Could you give alsa-info.sh output on your machine?  Otherwise it's difficult to analyze.

OK. I have attached it. In a few places, I replaced text with "[DELETED]" to avoid identifying the product.

Speaking of your patch: add_jack_kctl() itself has a check of is_jack_detectable() for phantom jacks, so basically this shouldn'tmake any difference.  So we need to check more deeply why this change is really needed.

Right. This is some kind of initialization order problem where the following data flow fails: codec->no_jack_detect ==> jack->phantom_jack ==> jack->pin_sense. The Intel driver has a lot of "codec" sub-drivers, and I wasn't sure if would would really be practical for me to understand and get the relevant codec maintainers to approve if necessary. The fix I proposed is something I see as a temporary very low overhead workaround (only adds a few instructions, and only at initialization) until a correct fix is implemented. However, if this can be fixed properly quicly enoughtso avoid the need for a temporary workaround, that would be great.

thanks,

Takashi

Thank you for your analysis of this.

Adam