1. When there is no video input on the monitor after the computer is turned on, turn off the computer first, and then check whether the monitor connection is sluggish and firm. You can unplug it again and then reconnect it.
2. Check whether the video connection of the host is firm, unplug it before plugging it in.
3. Then turn on the computer and start it. If there is still no video connection, there is a video cable around instead, and then try to start.
4. Then pull out the memory of the host. Before pulling out the memory module, you need to press the buttons on both sides of it, and then gently pull up the memory module.
5. Then use the eraser to wipe the gold fingers on both sides of the memory stick, and then press the card slot for preparing the memory stick, and the buckles on both sides will automatically buckle the memory stick. Plug it in and restart the computer to solve the problem of no video input when the computer is turned on.