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hdaudio(4) mixer small oddity


I tested the new hdaudio(4) on my Sony VAIO laptop and noticed that
setting volume with mixerctl do show some unexpected results ...

Setting outputs.master/inputs.dac values from 0 to 63 make the sound
volume increase, but at 64 it suddenly becomes silent and then
increase again up to 127, etc ...

Looks like there is a range conversion problem when converting mixer
values to raw ones for setting the codec pins.

hdaudio0 at pci0 dev 27 function 0: HD Audio Controller
hdaudio0: interrupting at ioapic0 pin 22
hdafg0 at hdaudio0 vendor 0x10EC product 0x0262 nid 0x01 (firmware 
hdafg0: DAC0:02, Analog Speaker: Fixed Function (Unknown, 14)
hdafg0: DAC0:02, Analog HP Out: Jack (Black, 15)
hdafg0: ADC1:09, Analog Mic In: Jack (Red, 18)
hdafg0: ADC1:09, Analog Mic In: Fixed Function (Unknown, 12)
hdafg0: 2ch/2ch 44100Hz-192000Hz 16/16 20/32 24/32
audio0 at hdafg0: full duplex, independent
hdvsmfg at hdaudio0 vendor 0x14F1 product 0x2C06 nid 0x02 not configured

outputs.master=60,60 volume delta=8
inputs.dac=60,60 volume delta=8
inputs.beep=46,46 volume delta=8
record.mic=46,46 volume delta=8
inputs.reclvl=16,16 volume delta=8
outputs.dacsel=DAC00  { DAC00 }
record.source=ADC01  { ADC01 }

Nicolas Joly

Biological Software and Databanks.
Institut Pasteur, Paris.

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