Colin Snow
If you're using an HDMI cable to connect your laptop to an external display, you may want to put your laptop screen to sleep to avoid distractions or to save power. To do this on a Windows 10 laptop, first connect the external display via HDMI, then right-click on your desktop screen and choose 'Screen Resolution'. Click 'Identify' to see which display is chosen, then select the 'multiple displays' menu and choose your preferred desktop display. Finally, save your settings. Alternatively, you can hold down the Windows and P keys to open a sidebar menu, then select 'Second screen only'. This will put your laptop screen to sleep and display your desktop on the external screen. You can also adjust your sleep settings via the Control Panel to customize when your laptop screen goes to sleep.
Characteristics and Values Table
| Characteristics | Values |
|---|---|
| Operating System | Windows 10 |
| Connection Type | HDMI |
| Steps to Sleep Laptop Screen | 1. Connect an external display to the laptop through an HDMI cable. 2. Right-click on the desktop and choose 'Screen Resolution'. 3. Click 'Identify' to determine the external display number. 4. Select the 'multiple displays' menu and choose the desired display. 5. Save the settings. |
| Advanced Power Settings | 1. Go to Control Panel > Power Options. 2. Click 'Change Plan Settings'. 3. Click 'Change Advanced Power Settings'. 4. Modify the 'Sleep Setting' options as needed. |
| Keyboard Shortcut | 1. Press Win + P to open the 'Project' sidebar. 2. Select 'Second screen only'. |
| Command Prompt | 1. Press Win + R to open the 'Run' box. 2. Type 'cmd' and press Enter. 3. Use commands like 'powercfg/setacvalueindex scheme_current sub_buttonslidaction 0' to configure lid closing actions. |
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What You'll Learn
Using Windows 10: Change sleep settings in the Control Panel
To change the sleep settings on a Windows 10 device, you can access the Control Panel by following these steps:
Firstly, select the Start icon, then choose Control Panel. Within the Control Panel, you should be able to see the Power Options icon. Select this, and then click on 'Change plan settings'. This will allow you to adjust how long your device waits before turning off the screen and going to sleep.
If you are using a laptop, you can also specify what happens when you close the lid, by selecting 'Choose what closing the lid does'. Here, you can set the device to go to sleep when you close the lid.
You can also access the Power Options by pressing Win+R, typing powercfg.cpl, and pressing Enter. This will open the Power Options, where you can select 'Change plan settings' and adjust the sleep timer.
If you want to hibernate your device instead of putting it to sleep, you can do so by going to the Control Panel, selecting System and Security, and then Power Options. In the Power Options section, choose 'Change what the power buttons do', and then 'Change settings that are currently unavailable'. Here, you can select the Hibernate option and save your changes.
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Hold Windows and P keys: Access display arrangement modes
Pressing and holding the Windows and P keys together is a useful shortcut to access display arrangement modes on Windows 10. This shortcut opens a flyout with four options to choose from, allowing you to quickly switch between different display configurations.
The first option is "PC Screen Only," which means only the primary display, typically your laptop screen, will be used. This is useful when you want to focus solely on your laptop's display and don't need the secondary screen.
The second option is "Duplicate," which mirrors your primary display on the secondary screen. This is ideal when giving presentations, ensuring that your audience can see what's on your laptop screen.
The third option is "Extend," which combines both screens to offer an extended desktop. This setup provides you with a larger canvas, allowing you to use your primary monitor at its native resolution while utilising the additional space on the secondary display.
The fourth and final option is "Second Screen Only," where only the secondary display is used. This can be handy when you want to focus exclusively on the content displayed on the external monitor.
It's worth noting that these display arrangement modes provide flexibility in how you utilise your screens. For example, if you're using a laptop with an external monitor, you can disable the laptop's main display and use only the external monitor as your primary screen. Additionally, you can move individual programs between displays using keyboard shortcuts, providing further customisation to suit your specific needs.
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Use an external display: Identify and select from the menu
To turn off your laptop screen when using an HDMI connection to an external display, you can try the following steps:
First, connect your external monitor to your laptop using the HDMI cable. Make sure the external display is set up correctly and functioning as desired. This includes connecting any additional peripherals you may need, such as an external keyboard and mouse.
Once your external display is ready, you can now focus on configuring your laptop's settings. Start by pressing the "Windows Key + P" simultaneously on your laptop's keyboard. This will open a menu of display options. From the menu, select the "External Screen Only" option. This will ensure that only your external display is active, and your laptop screen will be disabled.
After selecting the external screen only option, you can close the lid of your laptop to further ensure that the laptop screen is off. However, you may want to adjust your laptop's settings to define what happens when you close the lid. To do this, press the "Windows Key + X," then select "Control Panel" from the list of options. From the Control Panel, navigate to "Hardware and Sound," then select "Power Options." Finally, click on "Choose what closing the lid does" from the menu on the top left. Here, you can specify the action you want to occur when the lid is closed, such as turning off the laptop screen or putting the laptop to sleep.
By following these steps, you should be able to successfully turn off your laptop screen while using an HDMI connection to an external display.
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Command prompt: Configure laptop to ideal settings
To configure your laptop to ideal settings using the command prompt, follow these steps:
First, ensure that your HDMI cable is correctly inserted and all connections are functional. Then, right-click on your Windows desktop screen, and select 'Screen Resolution'. Click on the 'Identify' button to determine which display is chosen as the external one. Once identified, select the 'multiple displays' menu and choose your preferred desktop display.
Now, to configure your laptop using the command prompt, open the 'Run' box by holding down the Windows and R keys together (Win + R), and then click 'OK'. Type 'cmd' and select 'Ctrl + Shift + Enter' to open the administrator Command Prompt.
Before typing in any commands, you have four options:
- Nothing happens
- Your computer goes to sleep
- Your computer goes into hibernation mode
- Your computer shuts down
These options are triggered when you close your laptop's lid. If you want your laptop to remain active but turn off the screen when using an external display, use the following commands:
- If your laptop is connected to a power source: powercfg/setacvalueindex scheme_current sub_buttonslidaction 0
- If your laptop is not connected to a power source and is battery-powered: powercfg/setdcvalueindex scheme_current sub_buttonslidaction 0
Please note that you should only attempt this method if you are confident with command prompt commands, as incorrect changes can corrupt your Windows operating system.
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Lid closing actions: Use commands to keep laptop active when closed
By default, your laptop is set to sleep when you close its lid. This can be a problem if you want to use your laptop with an external monitor, such as when you're trying to free up desk space or replicate a desktop experience.
To keep your laptop active when closed, you can adjust the 'Lid closing actions' settings. Here's how to do it:
For Windows Users:
- Open the Control Panel on your device.
- Navigate to "Power and sleep" settings.
- Scroll down to the "Lid closing actions" section.
- Look for the "When I close the lid" option.
- Set it to "Do nothing" for both battery and plugged-in options.
- Save your changes.
For Mac Users:
- Go to "Settings" or "System Preferences".
- Look for "Energy Saver" or "Power Settings".
- Find the option for "Lid closing actions" or similar.
- Set the action for "When I close the lid" to "Do nothing" or "Prevent sleep".
- Apply the changes.
By making these adjustments, your laptop will remain active even when the lid is closed, allowing you to use it with an external monitor without interruption. Remember that keeping your laptop running while closed can generate heat, so ensure proper ventilation and don't keep it on soft surfaces like a bed or couch, where airflow is restricted.
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