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video related issues on Dell desktop monitors and laptop screens are caused due to incorrect display or video settings, outdated graphics card drivers, incorrectly connected cables, and so on.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. Press the up arrow to test each of the different colors, green, blue, black, white, and text. If they are all displaying fine then the issue is not with your monitor. If any of these aren’t displaying correctly then there is a hardware issue with your Dell monitor. Start by restarting your monitor. I've had these monitors for years and this issue happens every time I unplug them or they lose power. Easy fix, takes less than a minute!Thanks for watching Method 2: Try using the Display Quality troubleshooter to fix the problem. It makes sure that your video card driver is compatible with Windows 7, and checks to see whether your color calibration, video effects, and display settings are correct. Try a different color preset setting in the Color Settings On-Screen Display Menu (OSD). Adjust the R, G, B value in the Color Settings OSD, if Color Management is turned off. Change the input color format to personal computer RGB or YPbPr in the Color Settings On-Screen Display Menu (OSD). Run the built-in diagnostics. 4,510. Sep 12, 2015. #1. So I decided to buy a second Dell P2414H to put next to my first one after being impressed with the display and wanting a two monitor setup. However, after I hooked up my second monitor, I noticed there was a weird color difference between the two. The second monitor seems to have a more reddish tint compared with the Windows and most Linux renders non color managed apps to gamut of whatever calibration your GPU+monitor have. The easiest way to solve your problem is to change to an OSD mode calibrated to sRGB when you use this non color managed apps in Win8: factory sRGB preset + GPU calibration, or CAL1/CAL2 with sRGB calibration. to turn on the lighting on the back of the monitor. Press and hold the lighting button once with your finger. to turn off the lighting on the back of the monitor. Not functional. You can control the lighting brightness. by moving the lighting button left/right. Button operation Image Detailed operation. .

dell monitor showing different colors