The most common video connection for laptops is VGA (Video Graphics Array) that carries an analog RGB signal. It is connected using a high density 15 pin connector. In rooms where audio is supported, a plug just like on headphones will be offered in the room. You have to plug this into the headphone jack on the laptop if you want any sound from your laptop to be played on the audio system.

There are other computer video connectors that you may find on your laptop. Most of these can be adapted with the VGA cable in the room. One of these is DVI that sends the video in digital form from the computer to the display. Most laptops with a DVI port supports analog over DVI or DVI-I to use an economical adapter to convert this port to VGA.

Now, IBM has provided VGA connection on its laptops. Hence, here information about how to install and use this feature is given. The order in which you do things with computers and projectors is very important. When turned on, some laptops examine all the ports and connectors to see what’s hooked up. If the projector is not connected during startup, the laptop may not activate the external video connector. Hence, it is advised to follow the following steps.

1) First you have to physically connect the two devices using a standard VGA cable. Some laptops like the Sony Vaio, the Apple iBook and new G4 Powerbooks do not have VGA monitor connectors. You have to make sure that you have the adapters or docking ports with you that are needed to connect to a VGA cable.

2) Then, turn on the projector, allow it to warm up and choose the proper computer input using the projector’s remote control.

3) Then, you have to turn on your computer. It is recommended to have your AC power adapter for your laptop and keep it plugged in during the presentation or else, the laptop may go into sleep mode during your presentation.

4) The last step is to set your laptop to the proper resolution. Most projectors will range almost any resolution to fit the screen, but the image clarity will be best when the projector is at its native resolution.

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