This alsa-lib patch seems to have been forgotten? Or at least not pushed out.
On 2015-06-18 10:47, David Henningsson wrote:
In case the hardware only supports a specific channel map, this change would allow surround41/50 to select the correct channel map and channel count in this situation.
Signed-off-by: David Henningsson david.henningsson@canonical.com
src/conf/pcm/surround41.conf | 11 +++++------ src/conf/pcm/surround50.conf | 11 +++++------ 2 files changed, 10 insertions(+), 12 deletions(-)
diff --git a/src/conf/pcm/surround41.conf b/src/conf/pcm/surround41.conf index 10e486e..2f82381 100644 --- a/src/conf/pcm/surround41.conf +++ b/src/conf/pcm/surround41.conf @@ -53,12 +53,11 @@ pcm.!surround41 { ] } }
- slave.channels 6
- ttable.0.0 1
- ttable.1.1 1
- ttable.2.2 1
- ttable.3.3 1
- ttable.4.5 1
- ttable.0.FL 1
- ttable.1.FR 1
- ttable.2.RL 1
- ttable.3.RR 1
- ttable.4.LFE 1 hint { description "4.1 Surround output to Front, Rear and Subwoofer speakers" device $DEV
diff --git a/src/conf/pcm/surround50.conf b/src/conf/pcm/surround50.conf index 7b7b17e..dc95c17 100644 --- a/src/conf/pcm/surround50.conf +++ b/src/conf/pcm/surround50.conf @@ -53,12 +53,11 @@ pcm.!surround50 { ] } }
- slave.channels 6
- ttable.0.0 1
- ttable.1.1 1
- ttable.2.2 1
- ttable.3.3 1
- ttable.4.4 1
- ttable.0.FL 1
- ttable.1.FR 1
- ttable.2.RL 1
- ttable.3.RR 1
- ttable.4.FC 1 hint { description "5.0 Surround output to Front, Center and Rear speakers" device $DEV