Question about Philips 20PF5121 20 in. EDTV-Ready LCD Television

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Resolution issue when connecting to a PC

The LCD TV works well in stand alone mode, but when I try to connect it to a PC with a VDI cable, the video mode is not accepted by the screen (though properly configured for PC use). The only solution seems to start the PC in safe mode and set resolution to 640 x 480, which is by no means an acceptable standard for today use of a PC. Is there any way to use the screen connected to a PC with a higher resolution? Thanks for your ideas.

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Re: resolution issue when connecting to a PC

If the tv accepts 640 x 480 via DVI lead in safe mode, then as long as the tv is set to work in conjunction with the same resolution as your pc by the pc to DVI setting, it must be your pc's graphics driver that is the problem, as in safe mode the graphics vga driver only is loaded and not the advanced graphics options and resolutions, so enabling you to view on an external monitor. You should be able to right click on your desktop, then graphics properties and select either clone/dual or monitor. If this option does not show then you need to go into your graphics cards properties and ensure that an external screen or multiple display; is enabled, depending on your graphics driver.

Posted on Jul 10, 2007

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  2. TV will cycle through all of the available resolutions, displaying each for about 15 seconds. Please wait, as it may take up to 2 minutes before a compatible resolution is found. If the display is incorrect or doesn't show up, keep waiting while TV continues to try and find a compatible resolution.
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I have a relisys lcd tv and its connected to the hdmi output mode but i want to connect my computer to it using a vga cable and once i plug it in nothing happens and i cant change the mode of the tv

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Make sure your Computer Display settings - Resolution not more than 1020x780. If so reduce and then try.

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I have a Sharp LCD TV and a Toshiba Satelite laptop. I have never had any problems connecting my laptop to the tv using a vga cable. It isn't working anymore however. I checked the cables and...

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The resolution and refresh rates have to match exactly to the TV for it to work correctly with the computer.

The newer computers are using much faster refresh rates by default. Their default resolution is also different.

Consult the manual for the TV and see if the computer's external monitor output can be set to match to what the TV exactly requires. Both the refresh rate and resolution are critical.

Jerry G.

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