Hi, recent Alsa changes (ac97_patch.c) seem to have broken my ALC655 ac97 codec on via82xx. The breakage happened around 2.6.5.
Specifically, I can no longer set
Mic As Center/LFE control
Unlike Line-In As Surround it is now reported as a volume control with Mono values from 0-0. Can't set that bit at all.
Secondly, I can't get 5.1 sound at all - though duplicate front does work.
Previously, I tested surround and center/lfe using the following plugs. I was able to test them as stereo pairs - now I can't get sound using them at. Any suggestions?
#setup 5.1 device using hw:0,1
#Device 0 is stereo
#Device 1 is 5.1
pcm.via51
{
type plug;
slave {
pcm "hw:0,1";
channels 6;
rate 48000;
}
}#Streams 2,3 = surround speakers
pcm.via23
{
type plug;
slave via51;
ttable.2.0 1;
ttable.3.1 1;
}#Streams 4,5 = center/lfe speakers
pcm.via45
{
type plug;
slave via51;
ttable.4.0 1;
ttable.5.1 1;
}
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