Ok so this machine has an ALC888 codec as below:
Codec: Realtek ALC888
Off of an Nvidia NDA chipset:
00:08.0 Audio device [0403]: nVidia Corporation MCP79 High Definition Audio [10de:0ac0] (rev b1) Subsystem: Micro-Star International Co., Ltd. Device [1462:4570]
The reporter is only getting sound when adding model=auto, which implies there is a specific quirk for this hardware otherwise it would be a no-op.
Looking at the driver there does indeed seem to be a quirk for this combination:
SND_PCI_QUIRK(0x1462, 0x4570, "MSI Wind Top AE2220", ALC883_TARGA_DIG),
It seems pretty odd that there is a quirk there, but it is broken.
Ok so this machine has an ALC888 codec as below:
Codec: Realtek ALC888
Off of an Nvidia NDA chipset:
00:08.0 Audio device [0403]: nVidia Corporation MCP79 High Definition Audio [10de:0ac0] (rev b1)
Subsystem: Micro-Star International Co., Ltd. Device [1462:4570]
The reporter is only getting sound when adding model=auto, which implies there is a specific quirk for this hardware otherwise it would be a no-op.
Looking at the driver there does indeed seem to be a quirk for this combination:
It seems pretty odd that there is a quirk there, but it is broken.