Ubuntu
alsa-driver package

  1. Bug #1087905
  2. Comment #14

Comment 14 for bug 1087905

Revision history for this message
Raymond (superquad-vortex2) wrote :

refer to figure 8 Mixer diagram

master volume control line out
alternate volume control alt line out
mono volume control mono out
pcm vol in analog stereo input mixer the pcm out

4.1 Reset Register (Index 00h)

Headphone Output (Alt Line Out). The ID4 bit is ‘set’, indicating this feature is present

AC97 Codec information
!!----------------------

0:5e = 0080

4.17AC Mode Control Register (Index 5Eh)
DAC Direct Mode.
This bit controls the source to the line and alternate line output drivers. When ‘set’, the L/R DACs directly drive the line and alternate line outputs by bypassing the audio mixer. When ‘clear’, the audio mixer is the source for the line and alternate line outputs