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I cant connect my pc to tv its saying unsupported video format .i am using vga cable

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: VGA connection just reads "no signal" Brand new TV and VGA cable.

i have a 26" insignia lcd tv that i use as a montor uou musr set the screen resolution on your computer to 1024x768. if you use a higher resolution it will say no signal.so use your montor to set the resolution to 1024x768 then hook it to the vga and it should work. bob griggs

Posted on Jul 07, 2009

  • 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

electronick
  • 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

  • 1 Answer

SOURCE: cant connect to pc

resolution has to be set at 1280 x 768

Posted on Mar 16, 2009

bob_computer
  • 3153 Answers

SOURCE: PC Wont Show up on TV Screen

Have you set the properties from your computers graphics settings ?

They have to be set first and it is always better to start with a lower resolution first.

First off ensure it is a good quality cable as many cheap cables are not worth the material they are made from.

Second you will have to make sure you tv is set to the correct input eg video 1, input 1, etc.

Third you need to call up the display properties for your graphics card on the computer

You can right click on an empty area of your desktop and if there is an option for Nvidia or radeon you should use that.

If not click on properties. setting, advanced, you should then see a tab for your graphics card, select this.

Options may vary a little from here on but you are looking for an advanced control panel just for your graphics card and it is in this area that you can select additional displays and their properties. Usually it is best to select "clone" until you have established a picture. after that you can select expand or other options, Clone is usually best.

You should also find the option that lets you set the resoloution for each screen independant. then you can select the flat screen and say set it to 1024 x 768 as a starting point whiles leaving your regular monitor as it is.

You should by now have some form of display on your TV. It may look wrong but once you have it you can alter the resolution until it fits as you want it to.
The aspect ration on your big tv may also need to be changed so that you can get the computer image as large as possible without loosing any of it eg. the toolbar

If you have an Nvidia card then you are better using the "dualview" option to do what I just described Radeon may have somthing similar but I am not a fan of that brand and find the Nviia easier to use for this type of work.

If your graphics card has a digital output then a lead from that to your TV if it too has hdmi etc is a better option than S-video, Some TV's also have a VGA input this too is better than S-VIDEO.

Posted on Aug 11, 2009

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Pc wont work via hdmi


Click here to download the user manual to your Philips TV, and check its specification page. You can see compactable video formats that the TV can accept. Check it with your computers video out format.

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There are two things you need to check for this to work. On your TV see what resolution is supported. This will be available from the menu options on your tv remote while on the PC input (for most TVs)

On your computer, plug into a known working monitor and change the resolution to the one supported by the TV, or possibly lower. Then plug back into the TV. You should now get a display if you have set the resolutions correctly.

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This depends on the TV's available inputs. The Pavilion m7570n has only a VGA output in the standard configuration.

Thus if the TV has a VGA port, turn off the computer and the TV. Then connect a standard VGA (RGB or D-sub 15-pin) m/m cable between the computer and the TV. To use the TV speakers, connect a 3.5 mm audio patch cable between the computers Line-out (green speaker port) to the VGA audio in. Turn on the TV and set the input to VGA (with the Source or Input button on the remote or the TV). Then turn on the computer. Windows XP should find the correct resolution to work with the TV. (If you turn on the TV after turning on the computer, you may get an unsupported signal. Press Ctrl-Alt-Del twice to restart the computer.) If it doesn't work, you may need to connect a different monitor and set the computer to a low resolution before connecting the TV and the computer.

If the TV only has composite or component video inputs, you will need a VGA to video converter (http://www.svideo.com/pctocomponent.html for example). A VGA to component cable will not work; those are for projectors that read an RGB input. TVs interpret YPbPr.

If you have added a video graphics card, you may have an HDMI and/or DVI port(s) on the card. In that case, check the specs of the TV. Some TVs will support HDMI or DVI-HDMI inputs from a computer. Others will not (since computer video signals are not the same as the signal from a set-top box). If you use a DVI-HDMI connector, make sure to use the HDMI port labeled for DVI and connect the audio cable as with the VGA connection. If you use an HDMI connection, you may need to set the sound properties to that of the HDMI port. (Find the control panel item for sound (under Hardware) and then select Manage Audio Devices. Set the Playback properties. If it doesn't work, use an audio patch cable.) Some TVs have RCA audio inputs for the HDMI-DVI connector. In that case, you will need a female 3.5 mm to RCA M/M adapter (if you use a 3.5 mm patch cable). There is a similar device if you want to use an RCA audio cable. You may need to enable the video ports on the graphics card before swapping monitors.

Some video cards have a TV out. In that case, connect the appropriate connector (should come with the video card). Then connect to the component, composite or S-video input on the TV.

Again turn off the TV and the computer before making any connections.

You will probably need to provide your own cables for must of these connection options.

I hope this helps.

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2 Answers

Message of Unsupported video signal after attaching laptop to TV.


it sounds like the resolution the laptop is trying to send is not one of the resolutions that the television can display. TVs can display a range of resolutions, so try changing the laptop resolution, either increasing it (make the pixels smaller) or lower the resolution, try a variety of resolutions, one should work.

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I just purchased a vga cable with two male ends, to connect my dell pc to my sony bravia flatscreen tv. i connected both ends between pc and tv as well as audio from tv into headphone output on...


You have to set the computer to emit the correct resolution for the monitor.

Try setting to 1020 x 768 and see if that works.

Do this in the "display" settings in the control panel of your computer. Also make sure the Sony is set to receive on the VGA port.

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It high definition digital signal. You will need a HD cable not a vga (that is analog).
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'Unsupported Signal' Error indicates that TV is accepting the signals for Video but not able to display because resolution doesn't matches. Else the message would be 'No Signal'.
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NOTE- Make sure cable is 15 pin(at both ends) VGA cable, working fine between PC & Monitor.
1.The standard resolution of laptop(any) which would support is 1024*768.
2. Toggle the display output from Laptop Fn Keys depending on Laptop Brand.
3. Connect the cable after settings made.
Also PC Settings will not be highlighted until connection is made.

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Press the Blue function key and toggle the screens. You can view, the Laptop, the Laptop and Screen, or just the screen.

Also you will need to flick through the channel button on the TV to get to the PC interface. Since you indicated you were using a VGA cable, this is likely the missing element.

Note: The VGA cable does not carry audio, you either had a separate audio interface to the TV or you were using RBG/Composite/S-Video/HDMI. So check to make sure you are using the correct cables.

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