How to Fix a Flickering Computer Monitor
- 1). Restart your computer. Windows has an irritating habit of developing quirky problems, but most of these can --- inexplicably, at times --- be solved by simply rebooting the computer.
- 2). Check your computer's video cable. This is the cable that runs from your computer to your monitor. A loose connector can cause input disruptions, which will lead to a flickering screen. Tighten the connectors at both ends of the cable, and verify that the connectors are properly seated.
- 3). Remove other electronics (besides the PC) from the area. Devices that generate magnetic fields can disrupt a monitor's workings, causing the screen to flicker. Note that cell phones are amongst these. While nearby electronics shouldn't often cause screen flickering, they sometimes do.
- 4). Modify your display settings. Right-click on your desktop and select "Properties." From the "Settings" tab, click on "Advanced." In the window that appears, select the "Monitor" tab. Try altering the refresh rate to see if that resolves the problem.
- 5). Check your video card. You'll need to open up your computer case, so this step should be avoided if you're not proficient in working with a computer's inner parts. Your video card is easily found by locating the cable that connects your computer to your monitor, which then mounts to your video card. Ensure that the video card is firmly mounted into your motherboard. A loose connection can cause issues in data transmission from the computer to the monitor.
- 6). Replace your video card. If none of the preceding steps work, it may be worth trying out another video card to see whether replacing your current card will solve the problem.
- 7). Contact your monitor's manufacturer to discuss troubleshooting measures if you believe you need to have the capacitors replaced, resoldered or need to purchase a new monitor. Some old CRT monitors malfunction due to bad capacitors. There was a flux in incorrect electrolyte formula, causing the capacitors to not disperse the heat properly and causes it to bulge. In addition, the heat and inability to filter direct current causes instability and voltage to trickle through the system. In these cases, the capacitor could cause a minor explosion or even cause intermittent flickering issues.
