This way, cards that support LFE on four channels (e g laptop with internal subwoofer) can do that, and other cards on a six channel setup can use that as well.
Well, note that there is still a reference to "pcm.surround51" left here. In practice, for HDA Intel sound cards this does not matter as both surround51 and surround40 reference the same definition. (And that's the only card I currently know of that actually does surround2.1 over four channels.)
Signed-off-by: David Henningsson david.henningsson@canonical.com --- src/conf/pcm/surround21.conf | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/src/conf/pcm/surround21.conf b/src/conf/pcm/surround21.conf index be29020..7f4676b 100644 --- a/src/conf/pcm/surround21.conf +++ b/src/conf/pcm/surround21.conf @@ -51,10 +51,9 @@ pcm.!surround21 { ] } } - slave.channels 6 - ttable.0.0 1 - ttable.1.1 1 - ttable.2.5 1 + ttable.0.FL 1 + ttable.1.FR 1 + ttable.2.LFE 1 hint { description "2.1 Surround output to Front and Subwoofer speakers" device $DEV