I'm using an Xbox Wireless Controller Model 1708 (listed as a supported device here) on a Late 2012 iMac running Catalina 10.15.7. The controller connects to the system just fine, but I can't interface with it using the Game Controller framework. At boot, I query the list of connected controllers and it's always empty--even if I've already connected my controller to the iMac. I can register for the controller connect/disconnect notifications, and they appear to be working. I receive a connect notification for my Xbox controller shortly after booting (not sure why there's a delay...). The problem is that the GCController object for my Xbox controller returns NIL when I query its extended gamepad profile. How can I query button states if I can't access the extended profile? I can access the deprecated GCGamepad profile as well as the micro gamepad profile, but neither give me access to the full controller's button state. I've tried searching for help and I noticed an unanswered question with the same problem here. How are you all supporting Xbox controllers in your apps? Is it unsupported in Catalina? Cheers! :)

I have a custom view setup to receive keyDown, keyUp, and flagsChanged events. When I first launch my app and press a key on the keyboard, I consistently see a half-second stall/hiccup before my keyDown handler is invoked. Subsequent key presses trigger the handler instantly. This is a barebones app with no other logic running, so there shouldn't be any performance bottlenecks. I see the same hiccup (though less consistently) when my app regains focus--it can take over a second before AppKit starts pumping my keyboard events again. I checked the backtrace when my keyDown handler is called, and I don't see anything weird: * frame #0: 0x0000000100008ea4 Sim`-[SimMetalView keyDown:](self=0x000000010022e880, _cmd="keyDown:", event=0x000000010034e6d0) at macos_sim.m:1795:2 * frame #1: 0x00007fff2b9942ad AppKit`-[NSWindow(NSEventRouting) _reallySendEvent:isDelayedEvent:] + 6512 * frame #2: 0x00007fff2b992719 AppKit`-[NSWindow(NSEventRouting) sendEvent:] + 349 * frame #3: 0x00007fff2b99144e AppKit`-[NSApplication(NSEvent) sendEvent:] + 2826 * frame #4: 0x00007fff2b7ddbdf AppKit`-[NSApplication run] + 707 * frame #5: 0x000000010000bfc5 Sim`main(argument_count=1, argument_input=0x00007ffeefbff888) at macos_sim.m:1974:2 * frame #6: 0x00007fff682a7cc9 libdyld.dylib`start + 1 * frame #7: 0x00007fff682a7cc9 libdyld.dylib`start + 1 I tried posting an empty event in applicationDidFinishLaunching to see if that would jumpstart the event loop, but that didn't help. I also tried setting the event supression interval to 0, which also did nothing: CGEventSourceRef input_event_source = CGEventSourceCreate( kCGEventSourceStateHIDSystemState ); CGEventSourceSetLocalEventsSuppressionInterval( input_event_source, 0 ); What could be causing this delay in receiving keyboard events? What are my options for getting instant access to keyboard events? Thank you!