Reset USB bus without reboot (MacBook ignores display) I have a MacBook Pro and work with different external monitors. The monitors have a keyboard and a mouse attached. Frequently the MacBook does not recognize the USB devices in the display and the keyboard and mouse do not function. I have to reboot. Is there a way to reset the USB system without rebooting?
You could try restarting the usb daemon in terminal. Like so:
sudo launchctl stop com.apple.usbd; sudo launchctl start com.apple.usbd