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macacaca 0 Newbie Poster

Hi.

I have recently reinstalled windows on my pc and have noticed that exactly in the middle of the monitor the colours change shade. It only minimul but it is noticable. To explain more clearly the whole left side is a lighter shade than the right side so it looks like there is a line right down the center. I have tried reinstalling the drivers but it doesnt seem to fix it. Any ideas would be greatly appreciated. Thanks

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Dani AI

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For : a split, slightly different shade down the middle is usually either the monitor itself or the signal feeding it. The fastest way to narrow it down is to check something the monitor draws itself (not the PC). Open the monitor on‑screen menu (OSD) or use a built‑in self test. If the menu or self‑test screens also show the left/right difference, the fault is inside the monitor (panel/backlight or internal driver board). If the OSD is uniform but the desktop is not, try the cable, connector, or GPU.

Suggested checks (in order):

  • Power off, unplug, then reseat or replace the video cable. Try a different cable type or port (VGA vs DVI/HDMI).
  • Connect the monitor to a different PC or laptop (or connect a different monitor to your PC) to isolate monitor vs PC.
  • Boot to BIOS or a pre‑OS screen; problems seen there point to hardware, not Windows drivers.
  • Reset monitor to factory defaults via the OSD and run any vendor self‑diagnostics.
  • On the PC side, remove any custom ICC profiles, test with a basic driver or onboard video if available.

If the OSD shows the problem, do not open the monitor yourself (high voltages inside). Contact the maker or a repair shop; panel/driver‑board faults usually mean repair or replacement. If the issue is signal/GPU related, a different cable or GPU port will reveal that.

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