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TV will not recognize my computer

My TV is connected to my PC through a VGA cable and it will not recognize my computer

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Turn down the resolution of the computer to less than 1024 x 768 and select the pc input on the television

Posted on Jun 30, 2009


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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: LG 37LC7D Connect to VGA from a PC

Your right. I just had the same "Invalid Input" issue as well and it completely relates to the resolution compatability with any VGA or HDMI connection. Check the LG website for the online manual if you don't have it and see the section on RGB-PC cable. There is a table that incdicates the Resolutions the LG product is capable of displaying.

Thanks for the help.

Posted on Nov 09, 2008

  • 505 Answers

SOURCE: no picture when vga cable is connected

Most tvs can only handle a couple resolutions (ie 640x480) through the pc input. Even some HD tvs can only do 480. Check that your video is turned on and setup to the acceptable resolutions.

right click your desktop
go to properties
click settings tab
click on the 2nd monitor
make sure the box is clicked at the bottom
"extend my windows desktop onto this monitor"

instructions for windows xp

Posted on Dec 16, 2008

  • 2 Answers

SOURCE: no pc

checked the connection. Make sure you set your tv as video 1 or 2. If has no signal still,checked the cable...use right cable

Posted on May 20, 2009

  • 5 Answers

SOURCE: pc connect to plasma tv pioneer pdp hd5070

(1) Have you selected VGA Output on the Laptop?
Usually there is a Function Key combination like Fn Plus F7 to send output to the external VGA Port, usually depicted by a monitor icon on the F7 Key
(2) If still no input to the TV, check the TV manual for the frequency of the VGA Input.
For Windows XP Sometimes you have to go into
Control Panel / Display / Settings /Advanced then Monitor Tab
& look at the Screen Refresh Rate.
Suggest you try lowering that value till it produces a signal.
Good Luck

Posted on Aug 14, 2009

SOURCE: I just bought a 19 inch flat tv with the dvd

Set the screen resolution, on the PC, to a low initial setting say 800x600 32bit, and also ensure your Video Out is set right either PAL or NTSC depending on what your TV receives. Make sure you have activated dual display "Extend windows desktop to here" under Video Properties, (Right Click Desktop)...and finally plug in to TV, turn on, and THEN boot up.

Posted on Feb 03, 2010

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I have had the same problem. If you have a VGA cable shown at the bottom. You can hook that into your laptop into the TV. The slots look like a blue incovering. You can also look at the image below that one for more additional help....



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Connecting wire between pc to tv

Hi there,

Depending on what type of TV you have, connecting your PC to your TV shouldn't be very expensive. Most newer models of TVs come with a VGA input.

Your computer has a cable to go to the computer screen, this cable is known a s a VGA cable, it looks like this:

Your TV might have a VGA input which looks like this:
All you have to do is unplug your VGA cable from your computer screen and plug it in to your TV so your cable will go fro your computer to your TV instead of your computer to your screen.

If your TV doesn't have a VGA input, it will have an RCA input which looks like this:

You can buy a VGA to RCA cable which will allow you to connect your computer to your TV which looks like this:

You can buy a VGA cable here:Click Here
You can buy a VGA to RCA cable here: Click Here

Thank you for using FixYa! Have a nice day and please remember to rate this solution.

Warm regards,

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Try plugging the HDMI cable to the TV and your Computer while the computer is off. Once it is connected, turn the computer on and it should recognize the cable.

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The TV will recognize any operating system. You can use a VGA cable to connect to the television if the TV has a vga port. Then select the PC input for the TV. If the connection is white and larger if may be a DVI connector. You will need a DVI cable in that case or a DVI to vga adapter.

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A u sure u have extended windows desktop or put it in to clone mode. maybe u haven't selected proper source on TV. just try with something besides TV maybe cable is too long or not working.

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The PC card you have doesnt appear to work with that adaptor. Dell Has its own Svideo / Video output adaptors.

You need a converter not an adaptor. Try looking on Amazon for this: ITV-900 PC to TV Converter

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PC to TV Hookup

It is very likely that TV supports only some resolution while in vga mode. I would try 1280x 1024 and keep changing it lower until TV recognizes signal from PC

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