Monitor flickering lines

Symptoms NOTE: This article is no longer being maintained or updated. Find information about how to troubleshoot and resolve common display issues on Dell monitors or laptops such as: The display is blank or black, or cannot see anything on the display The display looks distorted The screen is flickering The display is fuzzy or blurry There are horizontal or vertical lines on the screen The color is not displayed correctly on the screen The touchscreen is not working Cause Display or video related issues on Dell desktop monitors and laptop screens are caused due to incorrect display or video settings, outdated graphics card drivers, incorrectly connected cables, and so on. Identify the symptoms that you notice on your Dell computer and go to the Dell knowledge base article for further troubleshooting steps. Resolution Issue - Screen, Icon or Font Size Too Small or Too Big If the screen resolution, icons, or font size is too small or too big, changing the video settings helps resolve the problem. Issue - Blank Screen or No Video There is no display on the monitor or laptop screen. The computer or monitor is turned on but the display is either blank or black. Issue - Distorted image or video, flickering, fuzzy, blurry, or color problems The icons, font or screen looks distorted, it is flickering, fuzzy, blurry or has color-related issues. Issue - Brightness, contrast, horizontal lines, vertical lines or geometrical problems The screen is either too bright, too dim or has a black space on the top of the screen or on the bottom of the screen or has horizontal lines or vertical lines. Issue - Bright or dead pixel There is a tiny black, white, or colored spot that displays on the screen. Learn how to identify a bright or dead pixel on a Dell laptop or monitor screen. Issue - Touchscreen Troubleshooting The screen is not responding to touch, touch is working intermittently or is too sensitive to touch. Additional Information Videos Test Your Laptop Screen Duration: 00:24When available, closed caption (subtitles) language settings can be chosen using the Settings

About repair options that are available in your region. If there is no damage, go to the next step. Run hardware diagnostics on the Dell monitor to resolve multiple monitor issues Dell monitors provide a self-test feature check (STFC) and an integrated self-test (BIST) diagnostic tool that helps determine if the screen abnormality you are experiencing is an inherent problem with the Dell monitor or with the video card (GPU) and personal computer settings. When you notice screen abnormalities like flickering, distortion, clarity issues, fuzzy or blurry image, horizontal or vertical lines, color fade, it is always a good practice to isolate the monitor by running a diagnostic check on the Dell monitor. To learn more about running a diagnostic check on your Dell monitor, see the Dell knowledge-base article How to Run a Diagnostic Test on a Dell Monitor. NOTE: Self-test feature check (STFC) helps check if the Dell monitor is functioning as a stand-alone device. To check for screen abnormalities like flickering, distortion, clarity issues, fuzzy or blurry image, horizontal or vertical lines, color fade. NOTE: Integrated self-test (BIST) can be run only when one or more video cables are unplugged and the Dell monitor is in self-test mode. Reset the monitor to factory settings if your personal computer is not detecting the second monitor To reset a Dell monitor to factory default settings, follow these instructions: Press Button 3 on the monitor to enter the On-Screen Display (OSD) Menu. Press Button 1 or Button 2 to select Others option in the menu and press Button 3 to select. Press Button 1 or Button 2 to select Factory Reset option in the menu and press Button 3 to select. Press Button 3 to confirm the reset action. NOTE: The reset instructions for your Dell monitor might vary, see

If your computer’s secondary monitor keeps flickering and flashing randomly, this guide may help you resolve the problem. The issue is about the screen would suddenly turn black and immediately come back on, as if it’s entering sleep mode and then waking up, while the primary monitor works normally. Although these fixes worked for us, we can’t promise they’ll work for everyone.Also see: Game Stuttering and Lag on Dual MonitorSymptom: Second monitor keeps flashing randomlyHow to fix second monitor flickering and flashing issuesSelect and rearrange displays in Nvidia Control PanelAdjust desktop color settings option in Nvidia Control PanelOther recommended solutionsSymptom: Second monitor keeps flashing randomlyIn our specific scenario, the main monitor is a 144Hz gaming monitor, while the secondary monitor is a standard 60Hz display. When we have an active app such as Chrome on the main monitor, any moving content displayed on the secondary monitor would trigger the flickering and flashing problem. This makes the second monitor go completely black and then immediately show images again. This issue can happen at random intervals, every few seconds.How to fix second monitor flickering and flashing issuesThis monitor flickering issue is quite common and there are a few fixes you can try, but they might not all work depending on your specific problem.Related resource: How to Change Screen Refresh Rate in Windows 11Select and rearrange displays in Nvidia Control PanelIt might sound odd, but rearranging your display setup in the Nvidia Control Panel has fixed the flickering for some users. Follow the steps below to try this solution.Open Nvidia Control Panel from the Start menu in Windows 11 or 10, or by right-clicking the Nvidia Settings icon in the notification icons area in the taskbar.In the control panel, expand Display and select Set up multiple displays.Select and enable the displays you want to use, then drag the icons (usually labeled as 1 and 2, where 1 is your primary monitor and 2 is your second monitor) to whichever direction you want.Click on Apply.It doesn’t matter if you have configured this before in the default Windows settings; the point is to configure this

Or video issue are: Blank or black screen Horizontal or vertical lines Color fade Fuzzy or blurry image Distorted or stretched image Geometric distortion Light leaks or light bleeding Flickering Light or dark patches Bright or dead pixels Learn how to troubleshoot common display issues on you laptop display, monitor, or multiple monitor. Back to Top Out of warranty? No problem. Browse to the Dell.com/support website and enter your Dell Service Tag and view our offers. NOTE: Offers are only available for US, Canada, UK, France, Germany, and China personal computer customers. Server and Storage not applicable. Affected Products Chromebox, Alienware, Inspiron, Legacy Desktop Models, OptiPlex, Vostro, XPS, G Series, Alienware and Dell Gaming Monitors, C Series, D Series, E Series, Legacy Monitors, P Series, S Series, SE Series, UltraSharp Premier (UP) Series , UltraSharp (U) Series, Chromebook, G Series, Alienware, Inspiron, Latitude, Vostro, XPS, Legacy Laptop Models ... Products Fixed Workstations, Mobile Workstations

[SOLVED] After adding a second monitor, my screen flickers in a way reminiscent of a faulty cable when playing some, but not all games. Thread starter Thread starter Athyrn Start date Start date Mar 27, 2020 You are using an out of date browser. It may not display this or other websites correctly.You should upgrade or use an alternative browser. Mar 27, 2020 2 0 10 #1 Description of Original Problem: I've had my computer for about a year and have always gamed on an AOC CQ27G1 27' @ 1440 144Hz without issue. Most games at ultra settings. Yesterday, I added a second monitor (1080 60Hz) to my computer and ever since then, I've started getting VERY bad screen flickering in random games. The screen flickering doesn't appear to be a VSync type of flickering. It looks as if someone started violently wiggling my DisplayPort cable. My audio runs from the monitor as well, and the audio cuts in synchronization with the display flickering. video exampleComputer Type: CustomGPU: XFX Radeon RX 580 8GB DDR5 | Model No. RX-580P8D. Not overclocked.CPU: Intel i3-4130 @ 3.40GHz. Not overclocked.Motherboard: ASRock Rack H87WSA-DLRAM: CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600PSU: Corsair RM 550x; 550 WATTOperating System & Version: Windows 10 Home 1909 18363.592GPU Drivers: 19.50.19.19-200228a-352369C-RadeonSoftwareAdrenalin2020Chipset Drivers: 10.0.18362.387Background Applications: Steam, Chrome, GOG, Rockstar Games LauncherTroubleshooting:Swapped cables from DisplayPort to HDMI and back. Unplugged secondary monitor. No discernible difference.Ran ATS in OpenGL, Safe Mode, and Direct X. OpenGL provided best results. Still screen flickering, but less frequent. Not playable.Ran games in windowed/full screen. Ran games with full screen optimizations disabled. Disabled/enabled VSync. No discernible difference.Downloaded Windows Media Creation tool. Formatted HDD and SSD. Reinstalled windows fresh.Uninstalled GPU Drivers. Reinstalled.Installed monitor drivers after factory resetting monitor.Power cycled machine.Set main monitor to all refresh rates between 60 Hz and 144 HzNotes:Screen doesn't flicker when doing anything outside of video gamesThere was no flicker prior to the addition of a second monitor. Each of the games listed could run at or near max settings without issue.Audio, which is connected to the impacted monitor, cuts out in synchronization with screen flickering.I've had this computer and most of these games for a while now. This issue has never occured prior to the addition of the second monitor. Removing the second monitor does not seem to fix the issue, though.When launching games through Radeon Adrenalin, Radeon Adrenalin does