Member Avatar for AndrewCoy

Not really a border, the display from the computer is about 1 inch smaller all the way around than the TV! I can't figure out why or how to fix it.

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Since already asked about resolution and confirmed 1920x1080 on an ATI 3200, this is not a pixel-count problem but a scaling/overscan mismatch. A visible black band all the way around is the classic underscan/overscan issue: the TV and the GPU are not using a 1:1 pixel mapping.

Practical steps to fix it:

  • On the TV: look for a picture-size or input-label option and choose a PC/1:1 mode. Search for names like "PC", "Just Scan", "Screen Fit", "Dot by Dot" or "1:1 Pixel Mapping" and enable it; that turns off TV overscan.
  • On the PC (ATI drivers): open Catalyst Control Center -> My Digital Flat-Panels -> Scaling Options (Digital Flat Panel) and move the Overscan/Underscan slider until the desktop fills the screen. If that control is missing, install the latest AMD/ATI driver for the 3200 so the scaling option appears.
  • Make sure the output is actually 1920x1080 at the TV’s preferred refresh (usually 60Hz). Try a different HDMI port or cable, or the TV's VGA/PC input if it has one.

Notes and cautions: some older TVs never fully disable overscan; if both TV and driver lack proper controls you may need to use the TV's PC input or accept a small crop. Updating drivers (and TV firmware if available) is the least invasive first step.

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Member Avatar for Xlphos

Hi,

Have you tried increasing the resolution?

Which graphics card are you using?

Member Avatar for AndrewCoy

Hi,

Have you tried increasing the resolution?

Which graphics card are you using?

I'm using the onboard graphincs ATI 3200, the resolution is set to 1920x1080.

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