Your computer monitor may be flickering for a number of reasons. It could be due to a hardware or software issue, or something more serious like a power problem or a failing part.
The most common cause of monitor flickering is a low refresh rate. Your monitor’s refresh rate is the number of times per second it draws the image on the screen. If your monitor’s refresh rate is too low, it can cause the image to flicker or appear to “shimmer”. Most modern monitors have an adjustable refresh rate that you can change in your computer’s display settings.
A less-common cause of monitor flickering is a loose data cable. If the cable connecting your monitor to the computer has come loose or become faulty, the connection can become disrupted and cause the monitor to flicker. To fix this, make sure the cable is securely connected at both ends.
Another potential cause of monitor flickering is a failing backlight. Your monitor’s backlight is what illuminates the image on the screen. If the backlight is fading or failing, it can cause the image to flicker. Unfortunately, this usually means you’ll need to replace the monitor’s backlight or, in some cases, the entire monitor.
Other, less likely causes of monitor flickering include incorrect display settings, outdated drivers, overheating components, overheating rooms and electromagnetic interference. If your monitor is flickering, try adjusting the display settings, updating the graphics drivers, and making sure the room it’s in is cool and free of electrical interference. If none of these solutions work, it may be time to consider replacing the monitor.
Monitor flickering can also be caused by a power problem. If your monitor is connected to a surge protector or a power strip, check that the power strip is still working properly. Unplugging it and plugging it back in may reset the power strip and resolve the issue. If you’re still having trouble, try plugging the monitor directly into a wall socket.
Finally, monitor flickering may be caused by a failing part inside the monitor itself. If the monitor is more than a few years old, it may not be worth repairing and you may need to replace it. If the monitor is fairly new, contact the manufacturer for advice.
In conclusion, monitor flickering can have a number of causes, ranging from a simple adjustment in display settings to a more serious issue with a failing part. If you’re experiencing monitor flickering, try adjusting the refresh rate, checking the connections, updating the drivers and making sure the room it’s in is cool and free of electrical interference. If none of these solutions work, it may be time to replace the monitor.