2025年1月31日 · If your Mac seems to be turning on but is stuck on a blank screen, follow these steps. Press and hold the power button on your Mac for up to 10 seconds, until your Mac turns off.* Then turn your Mac on again. If your Mac doesn’t seem to be turning on at all, start with the steps for if your Mac doesn't turn on.

2023年1月3日 · If your Mac appears to be stuck on a blank screen, follow these steps. Try to start up from macOS Recovery: If your Mac seems to be turned on but the screen remains blank, follow the appropriate steps depending on whether you're using a Mac with Apple silicon .

2023年10月26日 · Press and hold the power button on your Mac for about 10 seconds. If your Mac is turned on, this turns it off. 2. Press and release the power button and see if your Mac starts up. 3. If your screen remains blank, press and hold the power button for about 10 seconds again to make sure that your Mac is turned off. 4.

2024年12月16日 · Learn what to do if your Mac starts up to a blank screen, such as an empty gray, black, or blue screen. Learn what to do if your Mac starts up to Options with a gear icon, also known as startup options. Learn what to do if your …

2018年12月12日 · To apply this solution: Un-check the “Automatic graphics switching” checkbox at the top of the panel (above the “Battery/Power Adapter” tabs). It may be necessary to Restart the Mac to make the change effective.

2024年3月12日 · If you have encountered a black or white screen while restarting or booting up your MacBook, or you’re simply getting nothing on screen at all, don't panic, it’s possible you’ll even be able to solve your issue without the need for a costly repair.

2024年10月2日 · If your Mac has no built-in display, make sure that your external display is connected to power, connected to your Mac, and turned on. Press and hold the power button on your Mac for about 10 seconds. (Every Mac has a power button. On laptop computers that have Touch ID, press and hold Touch ID.) Then press and release the power button normally.

2023年8月8日 · Have you ever booted your MacBook Air and found it unresponsive? If you have encountered a black or white screen while restarting or booting up your MacBook, or you’re simply getting nothing on screen at all, don't panic, it’s possible you’ll even be able to solve your issue without the need for a costly repair.

2024年10月23日 · Whether your using an older Intel MacBook or a brand new M2 MacBook Pro, any number of issues can cause a MacBook Pro black screen, or a MacBook Air black screen for that matter. Sometimes it can happen waking your laptop from sleep, and sometimes it can be caused by broke disk permissions or a software error.

2018年12月31日 · LED 1 - Indicates that the trickle voltage from the power supply is detected by the main logic board. This LED will remain ON while the iMac is connected to the AC power. The LED will remain on even when the computer has been shut down or put to sleep. The LED will turn off only if the AC power is disconnected or the power supply is faulty.