Gina Johnson
If you want to keep your MacBook awake while it's connected to an external monitor and the lid is closed, you can use clamshell mode. This mode lets you connect your MacBook to an external display, turning it into a desktop workstation. To enter clamshell mode, you'll need to connect an external keyboard, mouse, power adapter, and external monitor to your MacBook. However, it's important to note that using clamshell mode may cause overheating issues, especially with MacBook Airs, due to reduced airflow through the keyboard. Additionally, you can use the Amphetamine app to prevent your MacBook from sleeping, but it may have compatibility issues with Apple Silicon.
| Characteristics | Values |
|---|---|
| Name of the feature | Clamshell mode |
| Requirements | External keyboard, mouse, power adapter, and external monitor |
| Compatible devices | MacBook, MacBook Air, MacBook Pro |
| Compatible operating system | macOS Sonoma 14.3 or later for M3 MacBook Air; macOS Sonoma 14.6 or later for M3 MacBook Pro |
| Other requirements | Apple M3 chip, two external displays with compatible video inputs (HDMI, DisplayPort, USB-C) |
| Alternative methods | Using Amphetamine or similar apps, pressing the space bar on an external keyboard after closing the lid |
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What You'll Learn
Use Amphetamine app or a terminal command
If you want to keep your MacBook awake while using an external monitor with the lid closed, you can use the Amphetamine app or a terminal command.
Amphetamine App
The Amphetamine app is a popular workaround for this issue. To use it, first, download and install the app on your MacBook. Then, launch the app and go to its settings. Make sure you uncheck the box that allows the system to sleep when the lid is closed.
After that, connect your external keyboard, mouse, power adapter, and external monitor to your MacBook. Now, when you close the lid of your MacBook, simply press any key on the external keyboard to wake it up, and your external monitor should remain active.
Terminal Command
If you prefer a more manual approach, you can use a terminal command to achieve the same result. Open your Terminal application and enter the following command:
Sudo pmset -a lidwake 1
This command will prevent your MacBook from automatically sleeping when the lid is closed. Again, make sure you have all the necessary peripherals connected, including the external keyboard, mouse, power adapter, and external monitor.
With this terminal command in place, you can close your MacBook's lid, and it will remain in a sleep-like state. To wake it up, simply press any key on your external keyboard, and your external monitor will be active.
It's important to note that using your MacBook with the lid closed may cause overheating issues due to reduced ventilation. MacBook Airs are particularly susceptible to overheating in clamshell mode compared to MacBook Pros. To mitigate this, ensure your MacBook has adequate ventilation and avoid blocking any vents or placing it in a position that restricts airflow.
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Connect to an external display
If you want to connect your MacBook to an external display, you can do so by using Clamshell mode. This mode lets you connect to an external display and use your MacBook like a desktop workstation. This is especially useful if you want to work around a faulty screen or reduce clutter on your desk.
To use Clamshell mode, you will need to connect your MacBook to an external keyboard, mouse, power adapter, and external monitor. It is important to note that your MacBook must remain plugged in while in Clamshell mode, which may impact battery longevity. If you are using a Bluetooth mouse and keyboard, ensure that Bluetooth is turned on and that the peripherals are paired with your MacBook.
Clamshell mode is also useful if you want to improve the graphics performance of your MacBook while minimizing its resources. It offers better ergonomics than using a laptop for graphic-heavy work and allows you to use the mouse and keyboard of your choice. However, one concern with Clamshell mode is cooling. With the MacBook closed, natural cooling through the keyboard is reduced, which may lead to overheating. MacBook Airs are more prone to overheating in Clamshell mode compared to MacBook Pros.
Additionally, you can use Amphetamine to prevent your MacBook from sleeping when the lid is closed. You can add Amphetamine to the startup application and start a session "indefinitely" to prevent sleep when the lid is closed. However, you will need to end the session and restart it if the charger is unplugged.
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Use a UTechSmart Docking Station
The UTechSmart Docking Station is a powerful tool that can help you use an external monitor with your MacBook while keeping the lid closed. This docking station offers a seamless solution for technology-focused professionals, including content creators, gamers, live streamers, and designers, who require multiple monitors for their work.
The UTechSmart Docking Station is a versatile option, compatible with a range of MacBook models, including the MacBook Pro, MacBook Air, and even the latest M1 and M2 versions. It also works with other devices, such as the Microsoft Surface Book 2 and Samsung Galaxy Tab Pro S, ensuring broad compatibility.
One of the key advantages of this docking station is its ability to support multiple displays. It breaks through the limitations of macOS, allowing you to connect up to four monitors simultaneously. This feature is especially beneficial for those who require an expanded workspace or need to multitask across multiple screens.
The UTechSmart Docking Station provides a range of ports to enhance your setup. It includes HDMI, VGA, USB-C, USB 3.0, and USB 2.0 ports, as well as an SD/TF card reader, Gigabit Ethernet port, and audio in/out ports. This abundance of connection options ensures that you can easily connect your peripherals and external displays.
To use the UTechSmart Docking Station with your MacBook and external monitor, follow these steps:
- Connect your MacBook to the docking station using the appropriate cable, such as a USB-C or Thunderbolt cable.
- Attach your external monitor(s) to the docking station using the HDMI or VGA ports.
- Ensure that your MacBook is set up to mirror or extend its display to the external monitor(s). You may need to adjust your display settings to achieve the desired configuration.
- Close your MacBook's lid and use the external monitor(s) as your primary display(s). The docking station will keep your MacBook from sleeping, allowing you to work seamlessly with the external setup.
By following these steps and utilizing the UTechSmart Docking Station, you can effectively use an external monitor with your MacBook while keeping the lid closed, maximizing your workspace and enhancing your productivity.
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Use a mini DisplayPort cable
If you want to use an external monitor with your MacBook while keeping the lid closed, you can do so by using a mini DisplayPort cable. This method is known as "clamshell mode", which allows you to connect your MacBook to an external display and use it as a desktop workstation. Here's a step-by-step guide on how to set it up:
Step 1: Ensure Your MacBook is Compatible
First, make sure your MacBook is compatible with clamshell mode. This mode is supported by MacBook Air and MacBook Pro systems with Apple's M3 CPU chips and the macOS Sonoma 14.3 or later.
Step 2: Connect the External Monitor
Step 3: Connect External Keyboard and Mouse
For clamshell mode to work, you'll need to connect an external keyboard and mouse to your MacBook. These can be wired or wireless. If you're using Bluetooth peripherals, make sure Bluetooth is turned on and the devices are paired with your MacBook.
Step 4: Connect Power Adapter
Clamshell mode requires your MacBook to be plugged into an external power source. Connect the power adapter to ensure your MacBook remains powered during use.
Step 5: Close the Lid
Once everything is connected and set up, you can now close the lid of your MacBook. Your MacBook will enter clamshell mode, and you can continue using the external monitor.
Step 6: Wake Your MacBook if Needed
If your MacBook goes to sleep after closing the lid, you can wake it by pressing any key on the external keyboard or moving your mouse. This will bring your MacBook out of sleep mode while keeping the lid closed.
Using a mini DisplayPort cable to connect your external monitor is a straightforward way to use your MacBook in clamshell mode. Keep in mind that one of the main concerns with this mode is cooling. With the MacBook closed, natural cooling through the keyboard is reduced, which may lead to overheating. Ensure your MacBook has adequate ventilation to prevent overheating issues.
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Adjust your battery settings
If you want to prevent your MacBook from sleeping when the lid is closed, you will need to change some lock screen and battery settings.
Firstly, make sure that your MacBook is plugged into a power source. You will also need to connect your MacBook to an external monitor or display using an adapter if necessary.
Next, open System Settings or System Preferences from the Apple menu in the upper-left corner. Click Lock Screen, then select the menu next to "Turn display off on power adapter when inactive" and pick "Never". If you don't see that option, go to Battery > Power Adapter instead, then select the slider and move it to "Never".
Now, click Battery from the menu, then choose Options. Switch on the toggle next to "Prevent automatic sleeping on power adapter when the display is off". In some versions of macOS, this option is in the Power Adapter menu and is called ""Prevent computer from sleeping automatically when the display is off".
You can also download a third-party app, such as Amphetamine, to keep your MacBook awake with the lid closed without connecting a monitor. However, note that some users have reported issues with the Amphetamine app and Apple Silicon.
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Frequently asked questions
You can use Clamshell mode, which lets you connect to an external display and use your MacBook with the lid closed. To activate this mode, connect an external keyboard, mouse, power adapter, and external monitor to your MacBook.
Clamshell mode can improve your MacBook's graphics performance while minimising its resources. It also allows you to use the mouse and keyboard of your choice, making for a more comfortable user experience.
Yes, the main concern is cooling. With the MacBook closed, natural cooling through the keyboard is reduced, which may lead to overheating. MacBook Airs are more susceptible to overheating in Clamshell mode compared to MacBook Pros.
Yes, you can use the Amphetamine app, which prevents your MacBook from sleeping. Alternatively, you can set your Mac to "Wake for network access" in the System Settings, allowing it to run updates in the background even when sleeping.
Yes, you can press any key on an external keyboard or press the space bar to wake your MacBook from sleep with the lid closed.
