There are several potential reasons why your computer’s display may not be functioning correctly. Some of the most common causes include hardware or software issues, system configuration problems, or outdated drivers.
Hardware Issues
If your computer’s display is not working correctly, the first thing to check is the hardware itself. Make sure all cables, including those for your monitor, are securely and properly connected. Additionally, check to make sure that the power cables for your monitor, graphics card, and other necessary components are also plugged in correctly. If you’re using a laptop, make certain that the power cord is plugged in correctly and that your battery is charged.
Software Issues
Software issues can be another cause of a malfunctioning display. Start by checking that your operating system is up to date. If not, then update it. You should also check to see if any updates are available for your graphics card driver. Outdated or corrupt drivers can cause display problems.
System Configuration Problems
Incorrect settings can also be responsible for a malfunctioning display. For example, if you recently adjusted the system settings to use a second monitor, you may need to reset this configuration. Or, if you enabled screen saver mode or went into sleep mode while the system was still powered on, this could have caused display issues as well.
Outdated Drivers
Finally, outdated or improperly installed device drivers are another common cause of display problems. To ensure that all the device drivers for your graphics card are up to date, use the Device Manager. From the list of hardware, expand the Display Adapters section and then select the graphics adapter name. Right-click on the adapter and choose Update Driver from the context menu. Follow the instructions to install the latest driver.
If none of these solutions fix your display problem, contact a professional technician to help diagnose and resolve the issue.