Hi, My configuration is http://www.alsa-project.org/db/?f=b6265238ab8c614754b1e7fc0af7e763cccf8f3b I get the error: $ alsamixer ALSA lib simple_none.c:1550:(simple_add1) helem (MIXER,'Master Playback Switch',0,1,0) appears twice or more cannot load mixer controls: Invalid argument I assume that my embedded soundcard is too new and not supported yet?
This doesn't seem to be related to pulseaudio. You can try to report this to the alsa developers: http://alsa-project.org/main/index.php/Bug_Tracking (I have no idea what causes the error.)
I also get $ dmesg|grep snd_hda_intel [ 2.323001] snd_hda_intel 0000:00:1f.3: enabling device (0000 -> 0002) [ 2.323299] snd_hda_intel 0000:01:00.1: Disabling MSI [ 2.323301] snd_hda_intel 0000:01:00.1: Handle vga_switcheroo audio client [ 2.360636] snd_hda_intel 0000:00:1f.3: control 2:0:0:Master Playback Volume:0 is already present [ 2.361238] snd_hda_intel 0000:00:1f.3: control 2:0:0:Master Playback Switch:0 is already present [ 2.361830] snd_hda_intel 0000:00:1f.3: control 2:0:0:Capture Volume:0 is already present [ 2.362406] snd_hda_intel 0000:00:1f.3: control 2:0:0:Capture Switch:0 is already present [ 2.362972] snd_hda_intel 0000:00:1f.3: control 2:0:0:Mic Boost Volume:0 is already present Dont know what causes it. I have reported to the alsa devs
You need kernel 4.12 for the audio from dual ACL 1220 codecs to work properly, https://github.com/torvalds/linux/commit/63691587f7b0028326ddd1226c378aaaeca4d4e4
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