libasound2 not working after update

[TheDead]

I think Moltke could be on to something...
1.Original post said:
snd_hda_codec_generic,snd_hda_codec_realtek

2.
Audio device: NVIDIA Corporation MCP61 High Definition Audio (rev a2)
Subsystem: ASRock Incorporation MCP61 High Definition Audio
...but them it says :
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel

3.
Then recently:
Destino por defecto: alsa_output.pci-0000_00_05.0.analog-stereo
Fuente por defecto: alsa_input.usb-KYE_Systems_Corp._FaceCam_VGA-02.mono-fallback

4.
Then last :
sysdefault:CARD=NVidia
    HDA NVidia, ALC887-VD Analog

Refering the the Widnows world, sound output goes trough different "channels/outputs" so the chipset and output could display differently.
But from in all I see
HDA Generic, Realtek, Intel then nVidia.

Maybe the output tries to go to a USB device (webcam, headphone, cellular, mp3 player, illuminating rock ).
Point 3. mentions a webcam (?), so I would disconnect it and anything USB other than mouse and keyboard if possible and reboot.

I'm still a Linux noob so I can't "decode" all those logs myself. Maybe it's time to boot a live Linux USB key and check with that.