When you're writing your dissertation, your advisor will undoubtedly make many contributions. They might suggest literature to look into or ways of tackling a problem. Many of these contributions I assume would be acknowledged sufficiently in the acknowledgements section where you thank those who helped, your advisor above all.
But what about when you're discussing something specific, maybe trying to figure out some problem. When you're working through it together, your advisor says "What about you try X?". It turns out that X solves the problem.
In the section of my dissertation where I discuss the problem and present my implementation of solution X, should I include something like a footnote stating explicitly that X was suggested to me by my advisor in conversation? I'm interested more in the issue of academic honesty/integrity than issues surrounding my relationship with my advisor (e.g., whether it might tick him off to not be specifically acknowledged in the section on X).