All modern laptops can connect to an external display, such as an LCD monitor, projector, or TV. The external display can extend your viewing area, giving you more space for applications, or mirror your laptop screen (show the same thing on both screens).
To connect the external display to a laptop, locate the correct port on the body of your laptop. Most laptops utilize on or more of the following connections: HDMI, DisplayPort, DVI, or USB-C (Thunderbolt 3). Some older laptops use VGA. These various connections can be seen in the images below.
Once you plug the display into your laptop, you may be required to press one or more keys on the laptop's keyboard to 'activate' the external display. This shortcut key combination varies depending on the laptop, but is often one of the following: hold the Fn key, and then press F3, F4, F5, F7, F8, F9, or F10.
The activation function key usually has a picture of a monitor on or above it. Consult your laptop's manual if you can't find the key. If you are still having trouble, or you need to download a copy of the manual, visit the laptop manufacturer's website.
How to connect an external display on macOS
For users with macOS X 10.8 or later:
Access the System Preferencesmenu and select the Displays option.
Press and hold the Option key.
In the bottom-right corner of the Displays window, you should see a Detect Displays button.
Click it to force the macOS to look for any external displays connected to the computer.
Laptop connected to a docking station
If your laptop is connected to a docking station, there should be several video ports on the back of it for a monitor, although the types of ports will vary from brand to brand. Depending on the docking station, the laptop may have to remain open for a dual monitor display.
How do I disable the auto-switch or specify an external display?
Some laptops have an external display 'auto-switch' feature, which can be configured in the BIOS. For information about making changes to the BIOS, see entering BIOS setup.
Will a monitor work with my laptop if my laptop screen is broken?
In many cases, yes. If only the laptop's screen is broken, an external monitor will usually still work with your laptop. However, if there are other malfunctioning components, such as your video hardware, the external display may not work.
Additional information
See the DVI, external display, and VGA definitions for additional information about these terms and related links.
There are several tips you can follow to improve battery life of your notebook or Netbook. Among these, turning off the screen of device, when you are not using it, stands in pivotal position. Suppose you are leaving for a smaller time but will return quite soon, you can just turn off LCD/LED screen of your laptop without shutting it down. Turning off the screen has some practical advantages. Suppose if you are doing some activity such as listening to music/audio book or downloading huge files from internet, which do not require the screen to be ON, this activity makes enough sense.
Regardless, as you might know, Windows does have no special feature to turn off laptop screen immediately; despite you can set the screen to turn off after a specific time-period. In this situation, you can use some special software to turn off the laptop screen manually. In that sense, preferably, it is good to use one of these tools to turn off screen immediately and hence to keep up battery life of the device!
1- Turn Off LCD – Simple as the Name
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Just as the name of the tool says, Turn off LCD can help you turn off the LCD screen of your laptop manually. Taimur Asad developed this application to switch off LCD screen of his laptop manually, as his device lacked a special key for that purpose. This tool, developed in C#, requires single click to turn off the screen. If you want to use the tool, you have to download the ZIP file from the following link. Open the ZIP file and you can see a Turn-Off-LCD.exe file that weighs 69KB. You can keep this file (or shortcut to file) in your desktop or somewhere else. When there is a situation to turn off the screen and just go, you can double-click on the tool. In a few seconds, screen of your laptop would be turned off. To turn it on, you have to press any key. You can download Turn off LCD from Here. Perhaps, it is simplest tool you can get for the purpose.
2- MonitorES – Save Energy
MonitorES also known as Monitor Energy Saver is another utility, which can help you prolong battery of notebook by turning off the monitor manually. You can download this free tool from the following link, and working is like a piece of cake. In the lite version of this tool, you have almost nothing to do but to press the Ctrl+F2 when you want to turn off the screen whereas in the standard version, you have options to customize working of tool. Additional features of MonitorES ranges from pausing the media players, setting IM status to away etc when you turn your screen off. So, this tool is something great and productive, especially while considering additional features we mentioned above. As both of these versions – lite and standard – weigh less than 50KB, you can download these in matter of seconds, and use it in your laptop.
3- BlackTop
Resembling the case of Turn Off LCD, BlackTop is a single-click tool to turn off the laptop screen manually! However, in this tool, you can keep the shortcut in the taskbar. When do you want to turn off the screen, you have to just use the hotkey – Ctrl+Alt+B – and the screen will be turned off in seconds. Also, when do you want to resume your work, you can hit any of keys or use touchpad to turn on the screen.
4- Sleeper – Just let Laptop Screen Sleep
When you want to let the notebook screen sleep, Sleeper is one the simplest tools you can get. This tool, developed by freeware developer, TheFreeWindows, weighs around 790KB. However, the action of the tool is similar to that of Turn Off LCD. Just as you did in the case of Turn Off LCD, you can extract and double-click on the .exe file to turn off screen of the device, and hence to save money. Despite having no additional features to confuse you, Sleeper would be an ideal tool to use! You can download as well as know more about Sleeper from TheFreeWindows from here.
5- Monitor Off Utility
Rather than turning off the screen, this tool offers several additional features. You can use several options such as to set the hotkey to activate screensaver, set up customized hotkey to turn off the screen, select whether you want the tool to start in Windows startup, etc. In addition, unlike other tools we have mentioned, Monitor off utility is having an option to set monitor turn off delay. If you have set this delay to 10 seconds, you can see a countdown of seconds before the screen turns off. If your system has .NET framework 2.0 or later, you can install this software and simplify the process of turning off the laptop screen whenever you want to.
Note: As you have seen, in some of these tools, we can assign customized hotkeys to turn off and turn on the screen. However, you should be careful while assigning these keys, because it should not make a conflict between default hotkeys of Windows such as Ctrl+C or Ctrl+V. So, choose a unique shortcut for those.
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Conclusion
We hope these tools would be quite useful for all of you, who would like to prolong battery life of your notebook. As we said, even though not high, you can feel a notable effect on battery life of your device. Do you use any other tool to turn off the screen? Do let us know about those tools if they have some unique features.
My laptop (Samsung N510) screen is broken and I've recently tried to install ubuntu 11.10. I'm planning to use the laptop with HDMI connected to my TV.While installing from a USB stick, both laptop screen (cracked with just light on) and my TV is displaying. When installation is finished and it reboots internal screen is the only one displaying.
Since I cannot see anything on that screen I was wondering if there are some way to type some kind of a shortcut or how to get into the settings without seeing anything.
I've tried the fn+F4 buttons that has the screen on it, but nothing happens.
I've also tried plugging HDMI cable in before startup, nothing happens, plugging the HDMI cable in while it's on does not work either.
I've tried unplugging my laptop screen before startup, with HDMI plugged in, (worked in windows) but then the laptop won't boot.
Is it impossible?
AsbjoernAsbjoern
2 Answers
Display Switch On Laptop Screen
In general laptops and netbooks allow to redirect the output with a key combination. For example on my laptop it's Fn+F5
Look for a key (usually F1 .. F12) with a screen icon. When pressing the special key Fn and that key, you redirect the output manually. So run your Live CD and press such a key combination few times - until you see the desired image on your monitor. After pressing each time wait a moment for the video card to redirect the output.
If your Fn key doesn't work please refer to your PC's user manual. On my second laptop I can disable/enable those keys with a key combination. Sometimes special keys need some kind of drivers to work.
Look to your bios settings. On my thinkpad laptop I am able to switch the default output to HDMI.
Maybe your Samsung does have that option too.
NomadicNomadic
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The display adapter, comprised of video drivers and a plug-in card or display circuit, generates the signals that display images and data on a laptop screen. The display adapter controls the maximum resolution (VGA, XGA, UXGA, WXGA and so on), how many colors can display (for example, VGA adapters can provide up to 256 colors) and how frequently the image refreshes itself (for example, 60Mhz, 75Mhz, 90Mhz). Laptop screens are generally smaller than monitor screens, so having ways to change the screen resolution as needed are important. Set a higher resolution to display more pixels per inch, and a lower resolution to increase the size of objects on the screen.
Resolution Change in Windows
Step 1
Step 2
Click 'Adjust Screen Resolution' under 'Appearance and Personalization.'
Step 3
Use the 'Resolution' drop-down slider to select the desired resolution and click 'Apply.' The screen displays at the new resolution.
Click 'OK' to keep the new screen resolution, or use 'Revert' to return to the previous resolution.
Resolution Change in Windows 2000 or XP
Step 1
Step 2
Click 'Display' and then select the Settings tab in the Display Properties window.
Step 3
Use the slider bar under in the screen resolution section of the applet to change the resolution and click 'Apply.' The screen repaints at the new resolution.
Click 'Yes' to keep the resolution, or answer 'No' at the prompt to revert to the original settings.
Resolution Change in OS X
Step 1
Click the Apple logo in the menu bar and select 'System Preferences.'
Step 2
Select the 'Display' tab in the utility that opens and choose the resolution for your screen display.
Tip
Note that the OS X 'Displays' utility allows you to mark a checkbox that causes the 'Displays' icon to display in the menu bar for easy access.
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