If I was on supervised probation and had 6 months left for 4 dwi's and caught a possession charge of coke what kind of time am I looking at.

Hello time:

It doesn't matter what you have left. They can make you do the entire sentence, and they might just do that.

excon

I'd worry about the time you'll be doing for the coke charge and not the probation violation (which is a slam dunk).