Member Avatar for ScottJK7890

I came home last night and my brother said the moniter was screwed up. I came out and everything looked fine, but there were waves going up the screen and a buzzing coming out the back. I tried disconnecting the moniter from the computer...and when i turned it on the moniter did the same thing. Next I cut the power to the moniter and turned it back on...same thing. Then I hooked it back up to the computer and now its doing the same thing but the color quality is at 4 bit from an original 32. When I try to set it back it just doesnt do it...and I'm starting to get really confused. Is it definately a mechanical problem...and is there anything I can do?

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Dani AI

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Because the picture was wavy and the monitor buzzed even when it was unplugged from the PC, the fault is far more likely inside the monitor than a Windows driver. and gave a useful software check (drivers), but given what reported you should start by isolating the monitor hardware before reinstalling drivers.

Try these steps in order:

  1. With the video cable disconnected, power the monitor and open its on‑screen menu (OSD). If the OSD itself is wavy or distorted, the monitor electronics are failing. If the OSD is clean but the PC image is bad, the problem may be the cable or video card.
  2. Swap the VGA/DVI cable for a known good one and tighten the connectors. Bad pins/cables can cause weird color/scan problems.
  3. Connect the monitor to a different computer (or connect a known working monitor to this PC). That definitively isolates monitor vs. video card/driver.
  4. Listen and observe: loud buzzing from the monitor chassis often indicates a failing power/inverter section (CRT flyback or LCD inverter) or bad capacitors. These are hardware failures.
  5. If the monitor is the problem, do NOT open a CRT (high-voltage hazard). For LCDs, inverter boards are replaceable; for CRTs capacitor/flyback repair should be done by a technician.
  6. Once the hardware is ruled out and the PC image is normal on a different display, reinstall the video drivers and set color quality back to 32‑bit via Control Panel -> Display -> Settings.

If diagnostics point to internal monitor failure, contact the manufacturer if the unit is under warranty or consider replacement — older CRTs are often cheaper to replace than repair, while some LCD inverter repairs can be economical. Safety note: internal monitor repairs can be dangerous; have a qualified repair shop handle any internal work.

Recommended Answers

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Member Avatar for Tekmaven

Have you recently updated your video drivers?

Member Avatar for ScottJK7890

no i havent...I just need to know if there is anything I can do.

Member Avatar for Zachery

Try updating your video drivers along with a windows update, it sounds like the video card drivers have gone bad.

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