Unloading twice did the trick, and no more distortions after that.
I'm on a ALC268 too, using the latest version i've lost both mics,while the previous let me use at least the Ext mic
To have the Ext mic in i had to raise the input volume from the "outputs" panel, i forget the name of the item now,
this item is disappeared now in the last version, and i can see only a mic in the "inputs" panel
great work so far btw. thank you
dump included if needed.