Herbie Murray
If your MacBook Pro running macOS Mojave is not waking from sleep, there are several troubleshooting steps you can try. Firstly, ensure that your Mac is not in Safe Sleep mode and that the screen brightness and external display are turned on. You can also try resetting your Mac's System Management Controller (SMC) or updating your browser. Another solution is to disable any third-party apps that might be causing the issue. Additionally, you can adjust your Mac's sleep settings, such as Turn Display Off on Battery When Inactive and Prevent Automatic Sleeping on Power Adapter When the Display is Off. These steps should help you resolve the issue and wake your MacBook Pro from sleep mode when running macOS Mojave.
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What You'll Learn
Check your Mac's settings
If your Mac is not waking from sleep, there are several settings you can check to troubleshoot the issue.
Firstly, ensure that your Mac is set up to wake from sleep. You can do this by checking the "Wake for network access" setting. This setting allows your Mac to wake briefly so that users can access shared services. To enable this setting, click the pop-up menu next to "Wake for network access" and choose an option.
You can also check if your Mac is set to update while it's asleep. To do this, click the pop-up menu next to "Enable Power Nap" and select an option. Enabling Power Nap allows your Mac to update while it's asleep, which can be convenient if you want to ensure your system is up to date.
Additionally, make sure that your Mac's screen brightness is turned up, your external display is turned on, and your Mac is not in safe sleep mode or turned off. These settings can affect the sleep-wake functionality of your Mac.
If the issue persists, you can try resetting your Mac's system management controller or running the commands again with a different value.
To access your Mac's settings, you can go to the System Preferences app. Here, you can manage your Apple ID, check for software updates, change the appearance of your Dock and Menu bar, select a wallpaper, control language preferences, check your battery level, manage extensions, and more. You can also access System Preferences by pressing the Command and Option keys together to open Spotlight Search, then typing "System Preferences" into the search box.
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Reset the system management controller
Resetting the System Management Controller (SMC) can help fix problems with your Mac's core hardware functionality. The SMC is a critical low-level component of Mac hardware that controls and manages system hardware for power consumption, battery charging, thermal activity, fan activity, LED lighting, GPU functionality, sleep and wake functions, and more.
Before resetting the SMC, it is recommended to try each of the following steps in order and test the issue after each step to see if the problem still occurs:
- Ensure your Mac's screen brightness is not turned down.
- Check that your external display is not turned off.
- Make sure your Mac is not in safe sleep.
- Confirm that your Mac is not turned off.
If the issue persists, you can try resetting the SMC. Please note that the steps to reset the SMC may vary depending on your MacBook model and whether it has a removable battery, a T2 security chip, or Touch ID. Here are the general steps for different MacBook models:
For MacBook models with a removable battery:
- Shut down your MacBook.
- Remove the battery.
- Press and hold the following keys on the left side of the built-in keyboard: Shift, Control, and Option.
- While holding these keys, press and hold the power button for 10 seconds.
- Release all the keys.
- Press the power button again to turn on your MacBook.
For MacBook models with a non-removable battery:
- Shut down your MacBook.
- On the built-in keyboard, press and hold the following keys: left Shift, left Control, and left Option.
- While holding these keys, simultaneously press and hold the power button for 7 to 10 seconds.
- Release all the keys at the same time.
- Press the power button again to turn on your MacBook.
For MacBook models with Touch ID:
- Shut down your MacBook.
- Press and hold the following keys: Shift, Control, and Option on the left side of the built-in keyboard.
- While holding these keys, simultaneously press and hold the Touch ID/power button for 10 seconds.
- Release all the keys.
- Press the Touch ID/power button again to turn on your MacBook.
If your MacBook has a T2 security chip, some sources suggest that you simply shut down the MacBook, press and hold the power button for 10 seconds, release it, and then press the power button again after a few seconds to turn on the MacBook.
After resetting the SMC, your MacBook's settings related to power consumption, thermal management, and hardware functionality may be restored to their default states.
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Update your system
Updating your macOS Mojave regularly is essential to ensure that your Mac runs smoothly and securely. Here are some detailed instructions to help you update your system:
Back Up Your Data:
Before installing any updates, it's always a good idea to back up your Mac. This will ensure that your important data is safe and secure in case anything goes wrong during the update process. You can use Time Machine, Apple's built-in backup feature, to back up your Mac to an external hard drive.
Check for Updates:
To check for updates on your Mac, click on the Apple menu () in the top-left corner of your screen. Then, select "System Preferences" and click on "Software Update" in the new window that appears. Your Mac will then check for any available updates and notify you if there are any new versions of macOS or other software compatible with your system.
Install Updates:
If there are updates available, you can install them by clicking on the "Update" or "Upgrade" button. An update will install a newer version of the currently installed macOS, like updating from macOS 10.14 to macOS 10.14.6. An upgrade, on the other hand, is a major new version of macOS with a new name, like upgrading from macOS Mojave to macOS Catalina.
Post-Update Checks:
After installing updates, keep in mind that some updates may change the functionality of your Mac, especially if you're updating from an older version of macOS. For example, macOS Mojave introduced changes to the handling of solid-state drives (SSDs), hard disk drives (HDDs), and Fusion Drives, converting them from HFS Plus to APFS. Additionally, Mojave was the last version of macOS to support 32-bit application software, so be prepared for warnings about the future discontinuation of support for these apps.
Sleep and Wake Settings:
Updating your Mac may also impact your sleep and wake settings. If you experience issues with your Mac not waking from sleep, there are several troubleshooting steps you can take. First, check your settings to ensure that your Mac's screen brightness is turned up, your external display is on, and your Mac isn't in safe sleep or hibernation mode. You can also try resetting your Mac's System Management Controller (SMC) or disabling full-disk encryption protocols if they are causing conflicts.
Remember to always keep your Mac up to date with the latest version of macOS to ensure optimal performance and security.
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Prevent automatic sleeping
If you want to prevent your Mac from automatically going to sleep, there are several methods you can try. Firstly, you can adjust your sleep settings. To do this, go to "System Preferences" and select "Energy Saver". Here, you can find the option to "Prevent your Mac from automatically sleeping when the display is off". Simply select the checkbox and confirm your choice. This setting allows your Mac to stay awake even when the display is turned off, which is useful if you want to keep your computer running in the background while conserving energy.
Another way to prevent automatic sleep is to set a schedule for when your Mac should go to sleep. You can do this by going to the Apple menu and selecting "System Settings". From there, click on "Battery" and move the slider at the top of the screen to "Never" if you want to prevent sleep mode entirely. Alternatively, you can use Terminal commands to schedule specific times for your Mac to enter sleep mode. For example, the command "sudo pmset repeat sleep MTWRFSU 22:00:00" will make your Mac go to sleep every day at 10 PM. You can customise this command by changing the time or excluding certain days of the week.
Additionally, you can enable "Power Nap" in your System Settings, which allows your Mac to update while it's asleep. This is a useful feature if you want your Mac to stay up-to-date without interrupting your workflow. You can also set your Mac to wake up briefly for network access by enabling "Wake for Network Access" in the System Settings. This ensures that your Mac can be accessed remotely, even when it's in sleep mode.
If you're experiencing issues with your Mac not waking up from sleep mode, there are a few troubleshooting steps you can try. First, check your brightness settings and ensure your external display is turned on. You can also reset your Mac's System Management Controller or try running the commands again with different parameters. These steps should help you prevent your Mac from automatically going to sleep and address any issues with the sleep-wake functionality.
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Check for unexpected mouse or keyboard activity
If you're experiencing unexpected mouse or keyboard activity on your MacBook Pro running macOS Mojave, there are several troubleshooting steps you can try.
First, check if your keyboard and mouse are working correctly by using the Keyboard Viewer. Go to the Apple menu, select System Preferences, then choose Language & Region. Click on the Keyboard Preferences button and select the Input Sources tab. Ensure that the correct keyboard language is selected. Choose the checkbox next to "Show Input menu in menu bar", then click on the Keyboard tab. Select the checkbox for "Show keyboard and emoji viewers in the menu" and choose Show Keyboard Viewer from the Input menu. With the Keyboard Viewer displayed, try typing on your physical keyboard and check if the corresponding keys on the viewer are highlighted. If they are, your keys are working correctly.
If your physical keyboard is unresponsive or acting erratically, you can also try displaying an on-screen keyboard and using your mouse or trackpad to click the keys.
For wireless Bluetooth keyboards, ensure that Bluetooth is turned on and that your keyboard is powered on and charged. Try disconnecting and reconnecting the Bluetooth connection, and make sure the connector is fully inserted into the port. You can also try connecting your keyboard to a different port or another Mac to see if the issue persists.
If you're experiencing issues with your mouse, try connecting a different mouse to see if that resolves the problem. Additionally, if you're using a Magic Trackpad or Mouse, try quitting and restarting the app or hiding and refocusing the app.
If none of these steps resolve the issue, you may need to reset your MacBook Pro's System Management Controller (SMC) or NVRAM/PRAM.
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Frequently asked questions
There are several reasons why your MacBook Pro may not be waking from sleep. Firstly, check that your Mac's screen brightness is turned up, your external display is on, your Mac isn't in safe sleep, and that the Mac isn't turned off. If this doesn't work, reset your Mac's system management controller.
If your MacBook Pro wakes up unexpectedly, you may need to change your sleep settings. Go to "System Settings", then "Energy" or "Battery" in the sidebar, and turn off "Wake for network access".
To wake your MacBook Pro from sleep, you can press a key on the keyboard, click the mouse or trackpad, or open the display.
