Comment 18 for bug 1324384

the easy way is

diff -u workingalsainfo nonworkingalsainfo

you can use early patching to disable independent headphone by hint and fixup spdif pin

since stereo mix is disalbed as it conflict with auto Mic selection

-/*
- * Lenovo Thinkpad T61/X61
- */
-static const struct hda_input_mux ad1984_thinkpad_capture_source = {
- .num_items = 4,
- .items = {
- { "Mic", 0x0 },
- { "Internal Mic", 0x1 },
- { "Mix", 0x3 },
- { "Dock Mic", 0x4 },
- },
-};