MicrosoftWindowsWindows 11
By default, when you shut the laptop lid, it goes tosleep mode.
If you have multiple screens connected, you cannot use external monitors exclusively with default Windows prefs.
The external monitor will also go blank as soon as you close your laptops lid.

Also, check how tofix the battery draining fast when the laptop lid is closed.
Table of Contents
Why close your laptop and use an external monitor?
Better viewing experience
Usually laptop screens are smaller and cause eye strain and discomfort.

The average laptops screen size is around 14, while mini laptops can measure anywhere between 11 and 13.3.
A larger external monitor can provide a much better viewing experience and reduce eye strain.
External monitors typically range from 17 to 32 and are more affordable than ever.

Additionally, they can be easier on the eyes due to their larger size and adjustable prefs.
Save battery life
The screen is one of the biggest power consuming components of the laptop.
This is especially useful when you focus on single tasks.

There are multiple ways to configure laptop lid parameters.
We will discuss three ways here.
Alternatively, you might also key in in powercfg.cpl to pop crack open the Power Optionsappletdirectly.
Click Choose what closing the lid does from the left.
This is the easiest way to run a laptop with the lid closed.
Once this setting is configured, your monitor will not shut off when you end the laptop lid.
Heres how:
Run anelevated Command Prompt.
Navigate to the following:
In the right pane, double-opt for Lid Switch Action policy.
power cycle your computerfor the changes to take effect.
Note:This setting applies to all power plans on the computer.
you might also use the script discussed below for automation.
Navigate to the following key:
Double-opt for Attributes value in the right pane.
Change the value data to one of the following:
Click OK to save the changes.
reset your gear for the changes to take effect.
The script was created and then shared onMicrosoft Technet Galleryfor the public to use.
We recommend using an HDMI or a Display cable that can carry both video and audio.
Both the monitor and the laptop need HDMI ports for the connection.
To make changes to the display configs, press theWindows Key + Pshortcut keys, which opens theProjectmenu.
The laptop screen is always the primary screen by default.
It will be disabled when the Second screen only option is selected.
choose the external display you want to set as your default monitor.
Scroll down to the Multiple displays section and select Make this my main display.
Just follow the steps below to enable audio through an HDMI unit.
Right-hit the speaker icon on the taskbar and click Sound prefs.
Right-click Digital Audio HDMI and press Set as Default gear.
You will get the sound from the external monitor, provided that it has a speaker or audio peripheral.
you might alsoextend and use the second laptop screen as a monitor in Windows.
For me, this option is useful, as I keep my laptop running all the time.
This helps me save power, as well as use external monitors, speakers, keyboards, and mice.
The secondary screen will automatically get activated and the laptop screen will be turned off on the logon screen.
What do you do when you want to trigger the laptop with the lid closed?
While there is no disadvantage, you should be careful with the setup.
For example, the laptop may overheat if the lid is closed and youre not monitoring the temperature.
Better to keep the laptop on a cooling pad.
Can I attach the docking station to my laptop and wrap up the laptops lid?
Using a laptop with a docking station is an efficient way to get the most out of your laptop.
Can I power on my laptop without opening its lid?
Yes, it’s possible for you to power on your laptop without opening its lid.
If connected, the laptop display will automatically shift to the external monitor.
Can I disconnect the laptop lid?
How many external monitors can I use with my laptop?
What should I do if my laptop gets hot when using an external monitor?
Using an external monitor can increase the workload on your laptop and cause it to heat up.
Should I keep the laptop running on low power mode when using an external monitor?
Unless otherwise necessary, better to keep your laptop in high-performance mode when using an external monitor.
Low power mode may impact the performance of your laptop, causing lag or delays in display output.
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source: www.itechtics.com