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External display crops image - W510 DisplayPort -> HDMI

Display Modes, Displayport, How To, Set Up, Troubleshooting

Question

I'm connecting my ThinkPad W510 to my Panasonic TV with DisplayPort to HDMI port.  The image on the TV is missing a part or picture around the screen.   On my notebook, the gauges in the top right are displayed correctly, but they are cropped on the TV display - some sort of misconfigured resolution perhaps?

 

Here is a view of the picture on the TV.  See how part of the gauge is outside the viewable area?

 

overscan TV.jpg

 

 

 

Answer

 

This appears to be a typical TV overscan issue.  Many televisions have overscan adjustment or a 1:1 pixel mode or a "just scan" mode.  In this particular case on this Panasonic, the follow menu configurations were found to resolve the effect:

 

"Menu" - "Setup" - "Picture Overscan"

This option was setup as "On", and when switched to "Off" the picture is now correctly displayed.