Our acid test for questions that are related to a game, but aren't actually about a game is as follow:
Remove the game from the question. Does the problem go away with it? If so, it's on-topic here.
We deal with games and their problems; take a look at How can I play games which are really old Java applets, for example. There's a specific game being asked about. It's not working in modern browsers, for some odd reason. Now take the game out of the equation. Does the problem still exist? It doesn't look like it; everything else is working fine in the browser. So the problem goes away along with the game. That means it's fine here. The root cause is Java and the browser, yes, but the issue itself is still a gaming problem, as this is the sort of thing gamers are going to run into.
This also applies to other things that aren't games, but that we support, such as Steam, consoles, and other gaming specific hardware and utilities. Just replace games in the test with said system, and see if the problem still exists
I think controllers meet the definition of gaming specific hardware rather well; I mean, you don't use controllers for much of anything outside of games (or at least, I don't. If you do, I'm curious what you use it for). We probably have more experience in installing and configuring controllers than any other place. We can help with that with no problem, I think.