[FRUSTRATED] Missing Sound Codecs for Lenovo ThinkCentre M710e

[Michael]

Hi All,

Technically this probably should go to a support channnel, and not a 
development list, but at my wits end.

Kernel:  4.15.0-91-generic #92~16.04.1-Ubuntu SMP

dmesg | grep snd
[   12.656843] snd_hda_intel 0000:00:1f.3: bound 0000:00:02.0 (ops 
i915_audio_component_bind_ops [i915])
[   12.807521] snd_hda_intel 0000:00:1f.3: CORB reset timeout#1, CORBRP = 0
[   12.810429] snd_hda_intel 0000:00:1f.3: no codecs found!

I have been playing with settings in the modprobe directory for Also 
with no effect.. current settings are..

options snd-hda-intel single_cmd=1
options snd-hda-intel probe_mask=1
options snd-hda-intel model=thinkpad
options snd-hda-intel position_fix=3

Have tried model=generic, and various other suggestions from online, but 
at a loss.  Don't see anything in:

https://github.com/torvalds/linux/blob/master/Documentation/sound/hd-audio/models.rst

Your ALSA information is located at 
http://alsa-project.org/db/?f=7898b30139e9a91fecec22f3ee46049f33248b85

Can anyone point me to how to debug this further, or any way to force 
detection of a proper codec for this model?

00:1f.3 Audio device [0403]: Intel Corporation 200 Series PCH HD Audio 
[8086:a2f0]
	Subsystem: Lenovo Device [17aa:313c]
	Kernel driver in use: snd_hda_intel


        description: Motherboard
        product: 313C
        vendor: LENOVO
        physical id: 0
        version: SDK0J40697 WIN 3305181519567
        slot: Default string

Booting in legacy OS mode, not EUFI..



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