Old Mac with Genius Bar
I have an old MBP, 2009 I think, 13" running Snow Leopard. It seems to have stopped working with an external monitor I have, connecting via a Display Port Mini to Display Port cable. The monitor doesn't see it's signal, although the MBP knows the display is connected. It used to, just not anymore.
Before I purchase a new monitor, can I march into a Apple Store, to a Genius Bar, and see if there's an issue with the cable or the Mac, even though it's a ridiculously old Mac? I would hope they'd have a display there that has a Display Port jack, where they can test the cable or my Mac.
Earlier Mac models