I'm looking to put up some new backsplash. I took off the old tile as carefully as possible, but some drywall was damaged. I put one hole in the wall which I will patch, but the rest, as you can see in the pictures, is in rough shape. The drywall is still solid, but the top paper ripped off in a lot of spots, and in some spots the glue is still showing.
I'm wondering the best way to prep before starting. Can I take all the paper off and tile right over the brown paper on drywall? Should I run some drywall mud over? Maybe do a thin layer of mortar and let it dry then tile over that?
Thanks for help