Debugging Alsa HDA Audio

If you're using the snd-hda-intel module and you've got audio problems, you might want to try out manually using a specific model, the list is in e.g. patch_realtek.c:
11687 static const char *alc268_models[ALC268_MODEL_LAST] = {
11688 [ALC267_QUANTA_IL1] = "quanta-il1",
11689 [ALC268_3ST] = "3stack",
11690 [ALC268_TOSHIBA] = "toshiba",
11691 [ALC268_ACER] = "acer",
11692 [ALC268_ACER_DMIC] = "acer-dmic",
11693 [ALC268_ACER_ASPIRE_ONE] = "acer-aspire",
11694 [ALC268_DELL] = "dell",
11695 [ALC268_ZEPTO] = "zepto",
11696 #ifdef CONFIG_SND_DEBUG
11697 [ALC268_TEST] = "test",
11698 #endif
11699 [ALC268_AUTO] = "auto",

e.g.
sudo modprobe -r snd-hda-intel; sudo modprobe snd-hda-intel model=test


See here for more.

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