I'm having this problem too now, but I can't use this advise because I don't have a monitor currently and only have one TV to use, so any advise?
"Without it I can't see the edges of my desktop on my TV screen"
Same here. Every time there is a major windows 10 update, my screen gets screwed up. I have to feel around for things on the top, bottom and sides. I've always been able to fix this in the past in the radeon settings . Doesn't seem to be any manual adjustment for this any more. At least, I can't find it.
Welp mine just broke again and I can't fix it, even with a clean driver install. Getting a new monitor so hopefully that would be the end of it. Though I shouldn't have to splash out money to solve a feature that should be working
In the tech support subreddit, the user Korwinthale suggested: "Go to monitor under your device manager or through advanced display settings and change the refresh rate from interlaced to 60 hz and it will work."
That did the job for me!
And I just reinstalled Windows on a new drive and started having the same problem, but forgot how I fixed it. I ended up back here, with no luck, then found that link again. Hopefully, this will help some of you!