The other day, I noticed a salesgirl in billing struggling with a monitor. The poor girl was staring so hard to read the displayed information and complete the transaction. One look at monitor and I could see the monitor was flickering wildly. After a little playing around, the problem was finally fixed by connecting the video cable properly. The cable was loosely connected to the port.
Flickering of the monitor can lead to a lot of health issues. First of all, it is too much strain on your eye. Your eye muscles are made to work hard to focus and read the content. This strain can cause fatigue, migraines and constant headaches.
This article is dedicated on how to fix monitor flickering problem.
Step by step troubleshooting to fix any monitor flicker problems
Check Physical connection and cable
Let’s start with the basics. Back in the time, when VGA was used for connecting display this used to be a problem. The monitor cable may not be properly connected or the male pin which goes into the port might have broken or loose. Simply by inserting the cable properly into VGA port fixed most issues.
The monitors now use either HDMI or DVI connector. Rarely, you get problems with loose contact. But it is worth checking if the cables are working properly and the connectors are properly inserted into the connection ports.
Check Monitor refresh rate
When OS is installed, it automatically adjusts the refresh rate without the user having to interfere with the settings. It is possible someone might have messed around the settings or a program especially video games or multimedia program changed the settings.
An old CRT monitor needs a refresh rate of 75 Hz to perform normally. Modern LCD and LED screen need less refresh rate because it doesn’t need to refresh constantly. A refresh rate of 60 Hz is considered normal. In case, if you find the monitor still flickering, increase the refresh rate. Another scenario is when you have a higher resolution, you need to increase the refresh rate to perform well.
To change refresh rate, Right click on Desktop -> Screen Resolution > Advanced Settings > Monitor Tab > Adjust screen refresh rate
If you feel fatigued after looking into your monitor even for a short while, consider increasing the refresh rate slightly and see if that helps.
Check device driver
Device drivers are software that allows a device to communicate with the operating system. Graphics card is responsible for displaying graphics on your monitor. You need to check if the driver for the graphics card is working fine. A device driver may get outdated or corrupted which result in properly communicating with the device. Check for any problems with the device driver. Make sure it is updated with the latest drivers.
Open device manager using the devmgmt.msc command in Run windows. Check the entry under Display adapters. Make sure there is no yellow exclamation mark or red mark which shows a problem. If any problem is indicated, it is advised to uninstall the driver and install it back.
Even if the entry is listed properly without any problem, then make sure to install the latest graphics card, driver. Go to the manufacturer website, find the graphics card model and install the latest updated driver.
Check graphics card
All computers user graphics card. By default, every computer comes with inbuilt graphics. Power users use an external graphics card for faster and powerful graphics. A conflict between internal and graphics card can create problems in graphics.
To check if there is a conflict between internal and external graphics card, disable the external graphics card and check if the problem is fixed.
If none of the steps above helped in fixing the problem, take the monitor for repair. If you are using an old CRT monitor which is pretty old, it is time to replace your monitor. Anyway, it’s high time to replace all CRT monitors.
LCD and LED monitors rarely show flickering problems. Take the monitor for tech repair. If there are too many problems, maybe it’s time to buy a new monitor.
Hope you find this article useful. Use the comment section for any queries or feedback.