What about the black screen of the computer and the solution?

When the computer has a black screen, you can try to press the restart button first and restart the computer to see if it can return to normal. If not, you can press F8 after restarting. If you can enter the safe mode normally, it means that it is a hardware problem. There are many reasons for the computer's blank screen, which can't be repaired simply by pressing a key on the keyboard. Need to find the reason for the white screen. The following are common reasons for the computer's black screen:

1. Monitor failure: If there is something wrong with the computer version of the monitor or the LCD panel, it will lead to a blank screen. In this case, you can try to replace other monitors to see if they are normal. If it is confirmed that it is a monitor problem, you need to replace the good monitor first and send the bad monitor to the repair shop for repair. Usually, monitor failures are easy to find.

2. Graphics card problem: If the monitor is on after the computer is turned on, but there is no screen display, the graphics card is likely to fail. You can turn off the computer, then take down the computer case, wipe your golden finger with an eraser, remove the oxidized part and reinstall the computer, which will generally return to normal. If it is not solved, you need to replace the graphics card, because it is likely to mean that the graphics card is damaged.

3. Other reasons: it may be that the memory stick is loose, and the display is not radiating well. You can clean up the dust inside the computer after it is turned on, unplug and plug in the memory, and reinstall the system if necessary, and try to repair the white screen problem by these methods.

Extended data:

Common failures of computer monitors:

1, just after the computer is turned on, the monitor screen shakes badly: this phenomenon mostly occurs in wet weather, because the inside of the monitor is wet. To solve this problem completely, we can string the moisture-proof sand in food packaging with cotton thread, then open the back cover of the monitor and hang the moisture-proof sand on the neck of the kinescope near the end of the tube seat.

2. Black screen after the computer is turned on: This is caused by the leakage of the CRT base, and the tube socket must be replaced. When the back cover is disassembled, you can see that there is a small circuit board at the tail of the picture tube, and the tube seat is welded on the circuit board. Unplug this circuit board, solder the socket, and solder the new socket back to the circuit board. First, find a small piece of sandpaper, and use sandpaper to clean the protruding stitches behind the picture tube.