Member Avatar for MCH2SWT23

We switched our pc monitor out for a flatscreen tv that can act as a pc monitor as well. However, we can't seem to get the display settings right. We tried the recommended settings at 640 * 480 @ 60 hz but it makes the screen entirely too big and I can't access certain parts of the screen, not even with the scroll bars. We just tried to adjust it again to 1024 *768 @ 75 hz but the screen went dark with the exception of a blue Attention Box that says 'Cannot Dislay This Video Mode, Change computer Display input to 640 * 480 @ 60 hz...but it won't leave this screen. It's frozen.

Can someone please tell me how to fix this and how to get this monitor to display like a normal pc monitor.


Thanks in advance for your help!!

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Dani AI

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Quick, practical troubleshooting for . is right that a power-cycle can help, but when a TV used as a PC monitor shows a built-in error overlay it is usually the TV's scaler/OSD that is blocking the desktop rather than Windows itself. The aim is to clear the TV's OSD, force a safe video mode on the PC, then set a matching resolution/scan so the TV displays the whole desktop without overscan.

Recommended actions:

  • Hard-reset the TV and isolate the signal. Turn both devices off, unplug the TV from mains for 20–30 seconds and disconnect the video cable. Boot the PC with no display attached, then reconnect the cable and power the TV. Selecting the correct input label (often called "PC" or "Computer") forces the TV to re-negotiate the signal and usually clears a stuck message.

  • Boot Windows in a low-resolution mode so the desktop becomes visible. On older Windows press F8 at boot and choose the low-resolution option; on recent Windows use Advanced Startup (hold Shift while choosing Restart) then use Startup Settings to enable a low-res mode. Once the desktop appears, change the display to the TV's native resolution and set the refresh/scan to a standard value.

  • Adjust TV picture/input settings to eliminate overscan. Look for modes named "PC", "Screen Fit", "Just Scan", "1:1" or "Dot by Dot" so the TV maps pixels exactly. If using VGA vs HDMI, try the other connector or a different cable/port.

If the problem persists: try a different monitor temporarily to set a known-good resolution on the PC, update/reinstall the graphics driver, try a factory reset or firmware update for the TV, and check the TV's front-panel buttons or remote (stuck buttons can freeze the OSD). If the TV OSD remains frozen even after a full unplug, the set may need service.

Member Avatar for Master Rattley

turn it on then off, so it's no longer frozen. Then just try a higher pixel setting.

Member Avatar for MCH2SWT23

We tried several times already cutting the pc and monitor on and off. It still stays stuck on that message :( Any other fixes?

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