My machine is a 15" Late 2013 MBP Retina. My OS is Yosemite 10.10.4.

I have a recent issue where my machine is intermittently becoming unresponsive to the keyboard and mouse. It's happening on average about twice a day at the moment.

I use a USB keyboard and mouse, plugged in via a USB hub.

The screen looks fine, the cursor is still flashing, I can plug the charger in/out and the battery symbol changes accordingly, the screensaver will come on fine, new email still comes in etc, so everything seems ok except my keyboard and mouse no longer work.

It also affects the keyboard and trackpad on the laptop itself. I press the caps lock key on the laptop keyboard and the green indicator doesn't come on.

The only key which works, luckily for me, is the power key on the laptop keyboard. I can hold that down and restart the machine. Nothing else works.

I've tried plugging the keyboard and mouse in directly (albeit only after the issue has started happening), I've reset the PRAM, I've closed the machine for 5 minutes and come back, nothing seems to fix it other than a reboot.

I've looked through the logs (after restarting) at the time it starts happening but nothing stands out.

I only recently moved to a USB keyboard and mouse and this issue only started happening since then. I only started using the USB hub at the same time too. I also started putting the machine on an MStand (although I can't imagine that would affect anything).

If it's one of the USB devices (or hub) causing this then it seems odd to me that it would also affect the keyboard/trackpad on the actual machine.

I've seen couple of other threads where people have something similar but nothing exactly the same and no definitive answers. Has anyone had a similar experience? Is there an obvious culprit out of the things I've changed recently which would cause the input devices to stop working?

Any advice appreciated.

Some more info: I'm pretty sure it's only happening when trying to do lots of scrolling with the mouse scroll wheel. I used to use the infinite scroll feature on the mouse a lot but noticed that's when the issue was occurring. So I switched to regular scrolling i.e. the clicky scroll wheel and it's happening much less frequently. It's happened once in the last 3 days whereas before it was at least once per day.

Feels like some kind of driver issue but the logitech software is up to date (v3.9.1).

Still hugely frustrating.

  • Are the kbd/mouse Apple-branded devices or third party? Have you experimented with no other USB devices attached, or with a different USB hub? Is the hub a powered hub? This page at AskDifferent suggests not using a powered hub.
    – IconDaemon
    Commented Aug 14, 2015 at 10:45
  • Mouse: Logitech M500. Keyboard: WASD V2 88Key ISO. The hub is powered (I use it to charge various devices from time to time), I'll switch the power off and see if that helps in the meantime though. Thanks. Commented Aug 14, 2015 at 10:54
  • Running the hub with no power didn't make a difference, still getting the issue. Commented Aug 26, 2015 at 9:23
  • I have a similar issue, documented here. The cause may be different in each case, but the net result appears to be the same, namely that the USB stack "crashes", and the only way of interacting with the machine is via the network (but only thunderbolt, not USB-ethernet), or by using the power button. Commented Nov 17, 2015 at 5:54

1 Answer 1


I had a similar issue and I stopped having it by turning off bluetooth. I had no bluetooth device connected when the problem happened.

  • Thanks, I'll give it a go. I don't have any bluetooth devices either. I used to have an Apple keyboard and magic mouse but gave up because my Mac would irretrievably lose the connection to both about once a day until I rebooted. I thought switching to USB would solve my problems but in fact have made them worse! Fingers crossed that shutting down bluetooth will sort it. Commented Aug 14, 2015 at 13:28
  • Shutting down bluetooth didn't solve the issue I'm afraid, still getting it consistently. Commented Aug 26, 2015 at 9:24

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