Modern Mac systems do not include an infra-red sensor, but for a while Apple included these for controlling Front Row and other applications using the included remote control. Alternatively, with the option enabled click the Pair button and ensure that the system is paired to only one remote-control device. If you are able to pinpoint a specific device, then you can further investigate its settings or options that could be causing the problem.Ĭheck this option to disable the infrared sensor. If not, then try plugging the peripherals back in one at a time (starting with the keyboard and mouse), and see if the same behavior occurs. After doing this, wait for the system to sleep and see if it wakes up on its own. To troubleshoot these devices, try setting your system to sleep after a short period of inactivity (1 minute is the minimum) in the Energy Saver system preferences, and then unplug all of them from your system (including the keyboard and mouse). Additionally, faults in the devices such as a broken key on a keyboard that is constantly sending information to the computer will prevent it from going to sleep for very long. Merely plugging in a device will do this, so if you have one connected and it turns on, that will also wake the Mac. Likewise, any peripheral device you have connected may also wake the system. USB activity is a sure way to wake a sleeping Mac, and is the reason why typing on wired keyboards does this. When troubleshooting peripheral devices (especially the mouse and keyboard), set the system to sleep after a short period to prevent long wait times. Though systems generally wake up because of user input (clicking a mouse or typing on the keyboard), there are a number of other ways that a system can be inadvertently awoken. This can be irritating because it wastes power, especially for laptop batteries however, it can also be concerning for those who might wonder if their systems are being accessed.
The system should stay in sleep unless specifically commanded to wake however, there are times when the system may randomly wake from sleep. Sleep modes on Mac systems are convenient for saving power while preserving your workflow, and can be set up in the Energy Saver system preferences for various power schemes (batteries, power adapters, and UPS units).
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