Member Avatar for Josen515

So as the title says, my main display monitor is showing a white screen, from the point of startup. Before this started happening, I started seeing a blue screen effect over my regular desktop. I have two monitors, my main one (which is the one with the problem) and a smaller one (that one works fine). You can see only a white screen on the big screen but on the smaller monitor you can see perfectly fine. I tested the big monitor with my PS4, and it works fine. What could be the issue? The monitor with the problem is connected through a VGA cable, and the smaller working monitor is hooked up with an HDMI. It really bothers me, because I have them setup as extended, so I can't really see what I'm doing. Please help.

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  • Latest Post Latest Post by drues1986

Dani AI

Generated

Short diagnosis and focused steps to isolate the fault.

Because the VGA cable worked on the smaller display and the big display works with the PS4 over HDMI, the most likely cause is the big display’s VGA input or the monitor’s analog input circuitry rather than the PC’s graphics output. That point follows ’s and ’s lines of thinking, but there are a few quick checks that pin the problem down more precisely.

  1. Watch the big screen during power-on: if the white screen is present already at POST/BIOS (before Windows loads) the monitor’s VGA input/board is failing. If the BIOS splash or boot messages appear normally and the white only starts when the OS loads, it’s a driver/setting issue (resolution or refresh rate out of range).
  2. From the working small display, temporarily make it the primary and duplicate/mirror the output (so both show the same). Set a safe resolution/refresh (example: 1024x768 or 1280x720 at 60Hz) then switch the big display back on. If the big screen now shows a picture, the problem was a timing/EDID mismatch; if not, it points to the monitor’s VGA input.
  3. Inspect the VGA connector and port on the TV for bent pins, corrosion, or a loose/pulled connector. Try the monitor’s OSD/input selection and any “Auto” or “PC” mode (some TVs treat VGA like component and need a specific input mode). Do not attempt high-voltage repairs yourself.

If the VGA input is faulty, practical options are to use the TV’s HDMI/DVI input from the PC (if available) or have the monitor’s input board replaced by a technician; weigh repair cost vs replacing the display.

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Member Avatar for rubberman

Have you tried another vga cable? Or another vga monitor? Did you use the same cable on the PS4? If so, then your computer has a problem with the vga adapter or connector.

Member Avatar for Josen515

I did, I tried the same cable (VGA) on the small monitor, and it showed up just fine. So now it makes even trickier to figure out. I didn't use the same cable for the PS4 because it doesn't have a VGA slot. Is it the VGA input from the TV, that is maybe damaged?

Member Avatar for IntegratedTweak

Screen itself I guess if it worked before that then likely the monitor is about to go.

Member Avatar for Josen515

Hmm, but it doesn't make sense, because the same monitor (TV) works just fine with the PS4. :(

Member Avatar for tech6916

There is a very good reason why VGA connector has all those pins: Power, grounding, color, etc. Sounds like the VGA adaptor on the monitor is the issue here. The monitor is still good but the Female VGA adaptor is not grounding well. Try a VGA to HDMI adapter and connect back as usual to see if you can bypass the syncing issue.

Member Avatar for drues1986

First try a new VGA Cable and if problem not solved then go to local repair shop they can solve your problem

commented: Hmm, Wise thought +0
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