How To Fix Check Video Cable Problem. The pictures below are examples of the VGA DVI HDMI and DisplayPort connectors on a video card. Check the default video source.
If you see the same garbled video output on the external monitor most likely it is not the LCD screen problem. Learn how to fix laptop display problem when your Dell laptop display is not working properly. Now after you have cleaned your PC position it the way you use to it in but.
Unplug the monitor from the wall.
Try a monitor reset. Check the default video source. My dad and I thought it might be the video card that simply stopped. Next if this does not solve your problem disconnect your computer DVD player or another input device from your cable and plug in a new input device.
