Gina Johnson
If your Mac won't wake from sleep mode, there could be a number of reasons. It could be due to a drained battery, malware, or even a faulty mouse. To fix this issue, you can try charging your Mac for 30 minutes and then pressing the power button. If that doesn't work, you can try resetting the SMC (System Management Controller) or NVRAM, removing external devices, or scanning for malware. Additionally, you can configure your Mac's settings to prevent it from waking up with mouse movements.
| Characteristics | Values |
|---|---|
| Mouse and keyboard not working after waking up | Move the mouse but unable to click on anything or type |
| Incompatible software | VMWare Fusion not compatible with Mac OS 10.11 |
| Malware | Unwanted software or malware running in the background |
| Battery | Drained battery after long periods of sleep |
| SMC errors | Resetting SMC can fix sleep and wake issues |
| NVRAM errors | Resetting NVRAM can fix sleep issues |
| Bluetooth settings | Turning off "Allow Bluetooth devices to wake this computer" |
| Hibernation | Configuring Mac to hibernate instead of sleep |
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What You'll Learn
Incompatible software
In some cases, a Mac may not wake from sleep mode due to incompatible software. This could be a result of software or hardware issues, or even unwanted software or malware running in the background.
To address this, it is recommended to boot your Mac into Safe Mode and remove any suspicious or incompatible software. Safe Mode is a diagnostic mode that performs checks during startup, allowing your Mac to run with only the essential drivers needed while preventing unnecessary startup items and third-party software from loading. To enter Safe Mode, press the power button to turn off your Mac, then restart it while holding the Shift key. Release the Shift key when the login window appears.
Additionally, it is suggested to use an antivirus tool, such as MacKeeper's Antivirus, to scan for and remove any potential threats or malware that may be impacting your Mac's performance.
In some instances, the issue may be related to specific software or drivers. For example, a user reported that updating from VMWare Fusion version 7 to version 8 resolved the issue, as version 7 was not compatible with Mac OS 10.11. Similarly, another user suggested that the Logitech Control Center software could be a potential cause, as it did not have a setting to control the sleep behaviour.
It is also worth noting that some Mac apps may exhibit specific behaviours when waking up from sleep mode, such as quitting or asking to save working documents. This may be related to the "Log out automatically after inactivity" feature or other system errors.
If the issue persists, it may be necessary to check your Mac hard drive for errors by running First Aid in macOS Recovery Mode. This can help identify and fix any minor issues with your startup disk.
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Malware or viruses
If your Mac won't wake from sleep mode, it could be due to malware or viruses. Malware can cause your Mac to become unresponsive and fail to wake up. It is recommended to use antivirus software to scan for and remove any malicious software. Tools such as MacKeeper's Antivirus, CleanMyMac, Windows Defender, and Hitman Pro can help identify and eliminate these threats.
Additionally, it is important to note that some viruses and malware can remain dormant until specific conditions are met. For example, certain malware may only activate when certain programs are opened or specific websites are visited. In these cases, a simple scan might not detect the malware, and a more thorough investigation may be necessary.
While it may not be the initial cause, malware could also be a secondary invader taking advantage of other issues with your Mac. For instance, if your Mac is stuck in macOS hibernation, it creates an opportunity for malware to infiltrate and cause further complications.
To prevent malware and virus issues, it is advisable to regularly update your operating system and security patches. Keeping your software up to date ensures that known vulnerabilities are patched and reduces the likelihood of infection.
Furthermore, user vigilance plays a crucial role in malware prevention. Being cautious about the websites you visit, the emails you open, and the programs you download can significantly reduce the risk of malware infection. Keeping your antivirus software active and up to date adds an extra layer of protection.
In summary, if your Mac fails to wake from sleep, malware or viruses could be a potential cause. Utilizing antivirus tools to scan and remove malicious software is essential. Regular system updates and user vigilance are also vital components of malware prevention.
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Battery issues
If your Mac won't wake from sleep mode, it could be due to a drained battery. Leaving your MacBook in sleep mode for extended periods can deplete the battery, causing the device to shut down automatically. To address this, charge your MacBook for half an hour, then press the power button to see if it starts up.
Additionally, you can try resetting the System Management Controller (SMC), which manages low-level settings, including sleep, wake, and battery supply. To reset the SMC, hold the power button for 10 seconds to shut off your Mac, reconnect the adapter, wait 5 seconds, and then press the power button again to restart.
Another factor contributing to battery drain during sleep mode could be certain settings and features. For example, your Mac may be set to \"Power Nap\" or \"Wake for Network Access,\" causing it to periodically wake up and renew network connections, resulting in battery drain. To adjust these settings, go to Settings > Battery > Options and make the necessary changes.
Furthermore, some users have reported that disabling Siri, Screen Time, and Find My Mac features, as well as turning off Wi-Fi and Bluetooth during sleep mode, can help reduce battery drain. You can automate this process using apps like Shortery or Bluesnooze.
It's also worth noting that issues with external peripherals, such as damaged devices or incorrect sleep settings, can prevent your Mac from sleeping properly and contribute to battery drain. Try disconnecting peripherals one by one to identify any problematic connections, and ensure that your sleep settings are configured correctly.
By addressing these battery-related issues, you can improve your Mac's sleep mode performance and reduce the chances of it remaining unresponsive upon waking.
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External devices
If your Mac won't wake from sleep mode, it could be due to various reasons, including software issues, hardware failure, or external devices.
If you have multiple USB devices connected, try disconnecting all of them except for the mouse. In some cases, the new OS may have a problem with one of the devices, and the symptom appears as a non-responsive mouse.
For USB mice, it is observed that some devices draw too much power from the USB ports, especially if you have a USB hub or an RGB-lit mouse connected. This can cause the computer to shut off the USB ports to protect itself.
If you are using a Bluetooth mouse, go to System Preferences > Bluetooth > Advanced and turn off "Allow Bluetooth devices to wake this computer." This will prevent your iMac from waking up unexpectedly in the middle of the night. However, you will need to press the power button to wake up your computer manually.
If you are using a wired mouse, you can try slightly pulling out the USB connector before cleaning your desk and pushing it back in to turn on the mouse. Alternatively, you can use sticky tack to cover the laser on the mouse to prevent it from waking up.
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System settings
If your Mac won't wake up from sleep mode, it could be due to various reasons, including software and hardware issues. Here are some detailed instructions to troubleshoot the issue:
- Check for viruses and malware: Unwanted software or malware running in the background can prevent your Mac from waking up. Use an antivirus tool like MacKeeper's Antivirus to scan and remove any threats.
- Update your macOS: Keeping your system updated ensures you have the latest bug fixes and security enhancements. Go to "About This Mac" in the main Apple menu, then select "Software Update" and follow the instructions if an update is available.
- Reset the System Management Controller (SMC): The SMC manages low-level settings like sleep, wake, and battery supply. Resetting it can fix wake-up issues. For Intel Macs, hold down the Power button for 10 seconds to shut down, then press Control + Option + left-side Shift for 10 seconds. For T2-based Macs, use the right-side Shift key instead of the left. Release, then power on your Mac again.
- Reset NVRAM: NVRAM stores system-related settings and can be reset to address sleep issues. Shut down your Mac, then press the Power button along with Option + Command + P + R for 20 seconds. Release when you hear the startup chime twice or see the Apple logo appear and disappear twice.
- Disconnect external devices: Sometimes, external devices can interfere with sleep and wake functions. Open Finder, locate the device, and click the Eject symbol to safely remove it.
- Check your screen brightness: Ensure your screen brightness is not set to a minimum, as this could affect the display when trying to wake your Mac.
- Prevent accidental wake-ups: If you want to prevent accidental wake-ups from a mouse movement, you can turn off the setting. Go to "System Preferences" > "Bluetooth" > "Advanced," then uncheck "Allow Bluetooth devices to wake this computer."
If none of these system setting adjustments work, you may need to try some additional troubleshooting steps or contact Apple support for further assistance.
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Frequently asked questions
In Mac OS X 10.7, Apple removed the ability to wake a Mac by moving the mouse. Now, you have to physically click the mouse or press a key to wake your Mac. This was done to prevent accidental triggers from knocks to the table or pets moving the mouse.
You could configure your Mac to go into hibernation ("safe sleep") instead of standby. Alternatively, you could get a cordless mouse with a shut-off switch, or a Bluetooth mouse that will only wake your computer when you press a button.
First, try pressing the power button without holding it down. If that doesn't work, try resetting the System Management Controller (SMC). If your Mac still won't wake up, you may need to try a force restart or reset the NVRAM.
NVRAM stands for non-volatile random-access memory and is used to store system-related settings to stabilise and accelerate your Mac's performance. To reset NVRAM, press the power button to shut down your Mac, then press the power button along with Option + Command + P + R for 20 seconds.
There are multiple reasons why your Mac might not wake up from sleep mode. It could be due to software issues, hardware issues, malicious software, or bugs in the system.
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