How To Connect Projector To Laptop & Windows 7?- Explained

By Arindam Roy

A laptop or desktop computer can be connected to a projector in order to project on it. This is done through a VGA cable (video graphics array) and will typically use the same port as for other monitor connections. It is important to make sure the input settings on the projector are set up so that they match the output settings of your laptop or desktop. These may vary depending on different sources of signal, but it is often necessary to change them from automatic to video signal, and from RGB color mode (red, green, blue) to component colors (red, green/blue). This article will go over how you can accomplish this process with these steps:

  • 1. Connect the VGA cable from your computer to the projector or display.
  • 2. Set your laptop or desktop computer to project on that output.
  • 3. Test the projected image to see if it works correctly.

There are also other options for connecting a laptop or desktop computer to a projector, such as an HDMI (high-definition multimedia interface) cable or DVI (digital visual interface) cable, but these tend to be more expensive and may only work with certain types of computers, displays, and projectors. For more information on these alternate options for connecting a laptop or desktop computer to a projector, see similar articles for those connections available at How To Do It Magazine.

Read here: What Is 3d Projector? Functionality Of A 3d Projector?

1. Connecting a projector to a laptop or desktop computer

The first step is to connect your VGA cable from the video output on your laptop or desktop computer to the VGA input on your projector. The video output typically looks like a row of holes, and may also be labeled as an “out” or “monitor out.” If you are using an external monitor on your computer, ensure that it is connected by either a DVI (digital visual interface) or HDMI (high-definition multimedia interface) connection.

If you are using an older analog video connection such as VGA (video graphics array), check that the input setting on your projector matches what type of signal you are sending it. For example, if you are using a VGA cable, make sure it is set to the “auto” setting. If it is in RGB or component mode (red, green/blue), make sure you switch it to the “video” setting. If your laptop/desktop computer and projector are both DVI or HDMI compatible, then you will be able to use a DVI or HDMI cable instead.

2. Connecting a projector to a TV

If your laptop or desktop computer has an HDMI output, connect that output to your display device using an HDMI cable. If you are using a VGA output, connect it to your TV using a VGA cable. If you are using an analog audio out, connect that to your audio system or home theater system, and if you are using an analog video out, connect that to your television or display.

Related article: Projector Troubleshooting & Solutions

3. Connecting other devices

If you have any other devices such as a keyboard or mouse connected to the computer, ensure those devices are set up in a way that they will also match the input settings on the projector. For instance, if the projector is connected through an HDMI output on your laptop or desktop computer, ensure you can see and hear them through the speakers on your TV after setting up inputs correctly.

4. Changing settings

If you have connected a VGA or HDMI cable to your laptop or desktop computer and your projector, but are still getting no picture, try adjusting video source settings. For instance, if the picture is black on your television while you are using a VGA cable, and you know it has worked before with other devices connected to it, make sure the video source setting on your computer matches what is set on your television. If you are using an HDMI cable to connect both the projector and the TV to the laptop/desktop computer, make sure that HDMI setting is correct on both devices.

There may be certain other options that need to be set for different kinds of inputs such as resolution or color depth. For information on how to do this, see How To Do It Magazine articles for the different types of connections available at How To Do It Magazine.

Relevant reading: How To Project Mobile Screen On Wall Without Projector & How To Connect Mobile To Projector: Explained

5. Troubleshooting

There are several possible reasons why your laptop or desktop computer will not project correctly on your projector. For example, it could be that the input settings on the projector are incorrect, and you need to make sure that they match the output settings of your laptop or desktop. Also, if your projector has an integrated video processor (see below) like a DLP (digital light processing) or LCOS (liquid crystal on silicon) projector, you may be able to turn it off by unplugging it from power and then plugging it back in after a few seconds.

If this is having no effect, try adjusting the brightness on the projector. If it still does not work properly, connect a different HDMI, DVI or VGA cable to test that one. If this still does not work, make sure all power sources are working and check the projector’s manual for information on possible issues such as dust or debris in the projector and/or computer or loose connections.

On a laptop or desktop computer, make sure you are connecting to your video output instead of your integrated graphics output (also called a “video card”). It may also help to connect a different HDMI, VGA or composite cable if you cannot get a sound out of your speakers.

Related post: How To Operate Projector: A Step By Step Guide

How to connect projector to laptop windows 7

Desktop Projectors are becoming increasingly popular these days, as they offer many benefits over a traditional TV or LCD Panel. But just how do you hook up a laptop to one of these projectors? Read on for some tips for connecting your laptop to a projector and power up your presentation!

  • 1) Connect the projector to the HDMI port on the laptop. This will be labelled “HDMI OUT” or something similar; it will not be marked with “IN” like most other ports.
  • 2) Plug in the power cable for the projector to an available power outlet, and then turn it on with a button on its side or back panel (or plug it into an extension cord). This is the easiest way to connect your laptop to a projector, but it doesn’t offer the best solution – you’ll get a blurry screen and have to move the projector around when you change slides. This is where “docking stations” come into play.
  • 3) How to Connect Projector, PC and printer: Dell U2515H 15.6 inch LED-Lit Monitor (1 GHZ i7 Processor, 8 GB RAM DDR3L 1600 MHz, 1 TB Hard Drive), Black Unlike standard computer monitors, projectors do not come with HDMI inputs; instead they use digital serial ports commonly called “D-SUB” connectors. These ports are similar to the serial ports found on older computers, but have a much higher bandwidth and use digital signals instead of analog.To hook up your laptop to the projector via a D-SUB connection, you’ll need a “docking station.” The docking station is like a hub for all the different cables that would otherwise tangle up your workspace. It sits quietly while other cables come out of it and run over to your laptop and monitor.
  • 4) A USB DVI or HDMI adapter – see the box below for examples. The number of D-SUB ports on projectors varies, since some models have a mix of inputs, and some have only one. For example, the “Digital Home WXGA 1080P Projector HX-GA30” has one DVI and two HDMI inputs. That’s it! Your laptop is now easily connected to your projector. With this setup you’ll be able to see your screen clearly, move your laptop around while presenting, and attach any other peripherals such as mice or printers.


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