Question 'Extend display' but no 'duplicate display' Techwood LCD TV to laptop

Jun 17, 2019
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Hi all. I have a Techwood LCD tv connected to my laptop. As the tv has no HDMI and the laptop has no VGA, I am using a VGA cable with a VGA to HDMI adaptor. A somewhat inelegant solution, but it works - to an extent. The 'extend display' option works ok but when I switch to 'duplicate display' I get the 'input signal out of range' message on the tv. Has anyone any suggestions? Tried the cable on another tv and it was fine.
 
The video resolution of your laptop display is not compatible with the video resolution of the TV. When you use the extended display the laptop sends compatible video to the TV.
You can change the resolution of the laptop display to be compatible with the TV but it might not look good on the laptop.
 
Jun 17, 2019
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Thanks. I have tried various resolutions, none seem to work on the duplicated screen option. It is not really a big deal, just annoying. I wonder if it could be the frequency, but then if the signal the laptop was sending was outside the frequency range of the tv I assume the extended display wouldn't work either?
 
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Jun 17, 2019
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Ok thanks. Native resolution of the laptop is 1366×768 pixels and no, unfortunately that is outside the range of modes the tv supports as per the tv manual (maximum of 1024 X 768). Edit: ok so the solution is to change the native resolution to 1024 X 768. Obviously this narrows the laptop display but it works. Many thanks all.
 
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