


1. How to solve the problem of black screen after turning on the computer when the monitor turns on:
1. Check the connection: Make sure the monitor and computer are connected The connection is good. Reseat the monitor and graphics card cables, making sure the plugs are not loose.
2. Check the power supply: Make sure both the monitor and computer are powered on and working properly. Try changing the monitor power cord and outlet.
3. Try an external display: Connect the computer to another monitor or projector to check if the problem still exists. This can help determine whether the issue is with the monitor or the computer.
4. Check monitor settings: Check whether the monitor is correctly set as the primary monitor. Press the Win P key combination to select Extended or Copy display mode.
5. Enter safe mode: Restart the computer and enter safe mode. If it can be displayed normally in safe mode, the problem may be caused by the driver or software.
2. How to deal with the problem that the monitor light is on but the screen is black:
1. Check the signal source: Make sure the computer is powered on normally and hardware such as graphics card and memory are working properly. Try connecting to other devices to verify the signal source is normal.
2. Adjust brightness and contrast: Check your monitor's brightness and contrast settings. Sometimes settings that are too low can cause the screen to look black.
3. Check the monitor status: Check if the monitor displays any error messages, such as unstable input signal. These messages may appear on the monitor screen.
4. Reset the monitor: Turn off the monitor, disconnect the power cord, wait a few minutes and then reconnect and turn it on. Sometimes this can solve a temporary problem.
5. View the monitor menu: Use the menu button on the monitor to enter the monitor settings and check for abnormal settings, such as incorrectly triggered input switching.
To summarize:
After the computer is turned on, if the monitor lights up for a moment and then goes black, or the monitor light comes on but the screen goes black, this is usually the case. Caused by connection issues, power issues, setup issues, or hardware failures. By step-by-step troubleshooting the possible causes, we can find the problem and fix it. If the problem persists, you may need to seek professional repair help.
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