The display connectors inside the device may be loose or faulty. You will need to open up your device to clean this connector and try to re-seat the connector. If that is not a solution to this problem you may need to replace the connector entirely. For a link to troubleshooting this device click here.

There can be many causes for a problem such as this. The first thing you can try to do is to shut down background programs that could be running and leeching off the ram and hard drive of your device. If this solution is unsuccessful then you may have bad memory/ram for your device. You may need to replace or upgrade the memory/ram inside the device. For a guide to troubleshooting this device click here.

A simple solution to this would be to open up your device and use a compressed air can to spray out the fans for potential dust. If this solution does not work you may need to replace the heatsink to the processor. For a link to the troubleshooting guide on this device click here.