Laptop turns on but no video

There are several possible causes when your laptop starts up but there is no video. One of the most common causes is a faulty or outdated video card driver. Drivers help your computer communicate with its hardware, including the video card. If you haven't updated your graphics driver recently, it may be out of date and unable to output video properly. In addition, if the driver is corrupted or otherwise malfunctioning, it may prevent your laptop from displaying any image on the screen.

Another possible cause of a laptop switching on but not displaying an image is a malfunctioning display panel. The display panel is responsible for displaying the output of the video card on the laptop screen. If this component is damaged or otherwise malfunctioning, it may not output video. If the display panel is at fault, it may need to be replaced by a technician.

Finally, another common cause of a laptop screen not displaying is a faulty connection between the laptop and its monitor. If the cable connecting the laptop to the monitor is loose or damaged, it can prevent the video signal from being sent properly. In this case, the cable may need to be checked and possibly replaced to get the laptop display working again.

By understanding the possible causes of the laptops not displaying video, you can better diagnose and solve the problem. If you cannot determine the cause of the problem yourself, you may need to take your laptop to a technician for further diagnosis and repair.