Comment 15 for bug 1332900

 > One other thing I noticed is upon startup/load of Ubuntu, at the top of the screen it says something about snd hda codec "module has bad taint".

This is the alsa daily build module. It is printing an warning message to inform you that you're running a module that was not compiled with the rest of the kernel. You can ignore it.

> tee: /sys/class/sound/hwC0D0/reconfig: No such file or directory

Hmm, maybe this is related to the daily HDA DKMS too, somehow. There has been some reorganising upstream w r t the devices. Try uninstalling the daily DKMS again, reboot, and retry.

> Are there any guides for this hdajackretask as to how I can do what you say, otherwise how might I get started experimenting with hdajackretask?

Omgubuntu wrote a small introduction here, not sure how helpful it is:

http://www.omgubuntu.co.uk/2013/12/turn-headphone-jack-microphone-jack-ubuntu

> @David : I think you meant modprobe.d (not modprobe.conf)

Yes, thanks.