Cause Analysis of failure when the computer in win7 system is connected to the projector

1. The service is not automatically started. Perform the following operations manually, for example, check whether the DISPLAYSWITH. EXE file is available in C: \ WINDOWS \ SYSTEM32.

2. If method 1 fails, press the "Fn + F3" shortcut key on the computer keyboard or select "win + p" to copy.

3. If the problem is caused by the system's graphics driver, we must reinstall the driver. Therefore, we will try again after installing the driver.

4. In the end, the vga Signal interface of the notebook may not be in good contact, and the vga signal switching line connecting to the notebook will be normal after the plugging.

Okay, the problem above is the analysis of the cause of failure that the Windows 7 system computer does not respond to when connecting to the projector. It is actually caused by some minor problems, however, this is a small problem, but I do not know it.