Day: August 11, 2010

ethernal war: snd_hda and headphones

Today I won in one minor battle between snd_hda and headphone output. I couldn’t force my headphones work without some magic. The first thing I found is that headphone nid should be on the same association with speaker. In my verbose dmesg I had:

hdac0: Processing audio FG cad=2 nid=1…
hdac0: GPIO: 0xc0000003 NumGPIO=3 NumGPO=0 NumGPI=0 GPIWake=1 GPIUnsol=1
hdac0: nid

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