kernel-packages team mailing list archive

[Raymond <1286021@xxxxxxxxxxxxxxxxxx>]

when subwoofer is connected to mono pin complex

the following patch force these kind of configuration to use 4 channel
mode instead of copy front mode


https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda/hda_codec.c?id=cd4035e814b04c009ece9939396d06370c53ed44

do it need fix to ensure multi channels was used when all of these
speakers pin complexes are stereo (e.g. those lapptop with internal 5.1
spekers) and use copy front mode when of the speaker pin complex is mono
?

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https://bugs.launchpad.net/bugs/1286021

Title:
  2.1 surround support (userspace)

Status in “alsa-lib” package in Ubuntu:
  Fix Committed
Status in “pulseaudio” package in Ubuntu:
  In Progress

Bug description:
  2.1 surround should work as seamlessly as other surround options, such
  as 4.0, 5.1 and 7.1 work today.

  Alsa-lib and pulseaudio patches for 14.04 can be tested here:

  https://launchpad.net/~diwic/+archive/surround21

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