Before you post, however, why don't you use the 'search' feature of the forum to read the hundreds of identical posts concerning CS:GO and black bars? Some going back years. And you can assume that any answer you get will be the same as has been posted.
You will have a response (maybe) if you post in the correct forum. As it says at the top of the page :
WELCOME TO THE GENERAL DISCUSSION FORUM
Use this space to post questions and discussions related to AMD that do not fit into the other forums.
For example; game promotions, benchmark scores, etc.
The correct forum > Graphics
Before you post, however, why don't you use the 'search' feature of the forum to read the hundreds of identical posts concerning CS:GO and black bars? Some going back years. And you can assume that any answer you get will be the same as has been posted.