How does a laptop connect to a projector? How much do you know about these skills

If we buy and use a projector in our home or office, we usually use a laptop to connect to the projector when we connect to the computer. Today, let’s introduce some methods for connecting our laptop to the projector. For everyone to understand, it is convenient for us to use in the future.

Laptop connected to the projector

Laptop connected to the projector—the projector RGB port has no input signal

When the projector switches to RGB output, it prompts that there is no signal input at the RGB port. First rule out whether the VGA cable is connected properly. If it is normal, it means that there is no signal output from the VGA output port of the laptop, and the problem lies in the computer. Is the VGA port damaged? Generally, the probability is relatively small. Through consulting the information, it is found that there are generally three output modes in the notebook computer:

1. LCD screen output, no output from VGA port. This is the default method, you may consider the reasons for power saving!

2. VGA port output, no screen output.

3. Both VGA port and screen have output.

Therefore, the computer must switch to the third output mode. Take Lenovo Zhaoyang laptop as an example, the switching method is keyboard Fn ten ports. Older notebooks such as Toshiba used a hard switch on the side of the notebook.

Laptop connected to the projector—the projector has information input, but no image

If the output mode of the class certificate notebook computer is correct, if the above failure occurs, first check whether the resolution and refresh frequency of the computer match the projector. We know that notebook computers generally have high hardware configuration, and the resolution and refresh rate that can be achieved are high.

However, if the maximum resolution and refresh rate of the projector are exceeded, the above phenomenon will occur. The solution is very simple. Use the computer's display adapter to lower the values of these two parameters. Generally, the resolution does not exceed 600*800, and the refresh rate is between 60 and 75 Hz. You can refer to the projector manual. In addition, it may happen that the display adapter cannot be adjusted. Please reinstall the original graphics card driver before adjusting.

Notebook connected to the projector-the projected image color cast

This is mainly a problem with the VGA cable. Check whether the interface between the VGA cable and the computer and projector is tightened. If the problem still exists, then you can buy a better quality VGA cable and pay attention to the model of the connection port.

Laptop connected to the projector—PC connected to the projector, laptop external monitor

There are generally two ways to connect a PC to the projector: use dual graphics cards or use a video splitter. Using dual graphics cards means that a PC is plugged into two graphics cards at the same time, one graphics card is connected to the monitor, and the other is connected to the projector; the function of the video splitter is to divide one video input signal into multiple channels of the same video signal output.

Most notebook computers are designed with RGB interfaces, which can be connected to an external monitor or projector. Resolution and refresh rate, notebook resolution and refresh rate Confirm whether the resolution and refresh rate set by the graphics card are within the acceptable range of the projector. I don't know if the range can be lowered, such as 1024*768—75HZ.