Re: I upgraded from jessie to stretch and messed up I used the dist-upgrade command....

[Michael Fothergill]

don't recall you saying what graphics hardware you have but I think
it is a radeon?  What is your lspci entry for it?

  lspci | grep VGA

​It is an AMD Kaveri box Radeon R7 200 series​ (APU)

http://www.eteknix.com/complete-amd-kaveri-review-a10-7850k-a10-7700k-a8-7600/

I have the A10-7850k APU

​Regards

MF​