Computer Connected Projector Tutorial

Part I.

One: PC connection projector, notebook external monitor

The PC connects the projector generally in two ways: using dual graphics cards or using video splitter.

The use of dual graphics card is a PC at the same time plug two graphics card, a video card connected to the monitor, another video card to connect the projector; the role of the video distributor is to divide the video input signal into multiple routes of the same video signal output.

Most laptops are designed with an RGB interface that can be external to the monitor or projector.

Laptop Connection monitor requires two points:

① Notebook Open RGB interface

Method one: In the BIOS to open in the computer boot to enter the BIOS settings, set the notebook Display properties (displays) for the both.

Method Two: Setting up a computer dual screen display in Display properties can be divided into two modes: one for mirror mode and the other for extended mode.

When mirroring mode is used, the laptop LCD and projector screen display exactly the same. When using extended mode, the projector display is the expansion of the primary display (laptop LCD). In the double screen setting, be sure to get the projector or other display equipment in advance, otherwise it will not be set up correctly. Bring up the Display Properties dialog box and select multiple monitors in the settings, that is, the Notebook + projector.

Method Three: Using the function key FN is the word function (functional) shorthand, almost all laptops have the FN key, it is the function and other keys to form a combination of keys, to achieve the hardware adjustment and switching functions. Here's another key, keyboard keys with a notebook screen key, most of which are F8. Switch with Fn+f8.

Need to switch several times, general situation:

The first time switch, the projector shows that the computer does not show;

The second switch, all show;

Third switch, projector does not show, computer display.

② resolution and Refresh frequency

Notebook resolution and refresh rate to confirm the video card set resolution and refresh rate in the projector to accept the range, do not know the scope can be lowered a little, such as 1024*768-75hz.

　Second, notebook connection projector common problems and solutions

① can't play video solution

Symptom: Notebook is Windows system, connect projector use WMP, Realpaler and Jinshan shadow PA play a video file, the notebook is normal display, but when projecting out, the video box is a black, there is no image.

　Part II

　One, the projector RGB port no input signal

When the projector switches to RGB output, it prompts the RGB port for no signal input. First, troubleshoot whether the VGA connector is connected properly. If the normal description of the notebook computer VGA output without signal, the problem is on the computer. Is the VGA port damaged? The general probability is relatively small. Through the inspection data, found that notebook computer generally exists three kinds of output mode: 1, LCD screen output, VGA port without output. This is the default way, may consider the reason of electricity saving! 2, VGA port output, the screen has no output. 3, VGA port and screen have output. Therefore, the computer must switch to the third output mode. Lenovo Zhaoyang Notebook Computer For example, the switch mode for the keyboard fn 10. Previous older notebooks such as Toshiba, switched to a hard switch on the side of the notebook. Transferred from www.58116.cn

Two, the projector has the information input, but does not have the image

In the case of the correct output mode of the notebook computer, the above faults should first check whether the computer's resolution and the refresh frequency match the projector. We know that notebook computer hardware configuration is high, the resolution can be achieved and refresh frequency are higher. But if the projector exceeds the maximum resolution and refresh frequency, it will appear above phenomenon. The solution is simple, the computer's display adapter to lower the two parameter values, the general resolution does not exceed 600*800, refresh frequency between 60~75 Hertz, can refer to projector instructions. In addition, it is possible to encounter the inability to adjust the display adapter, please reinstall the original video card driver before you adjust.

　Third, the projection image bias color

This is mainly the problem of VGA cable, check the VGA line and computer, projector interface is tightened. If the problem persists, then you can buy a better quality VGA line, pay attention to the model of the connection port Oh!