I have posted this problem on other geeky sites but I thought I'd try here as the sheer volume of traffic on here might enable a swifter responce.

I'm having trouble outputing my PC screen to my 40" LCD TV. My graphics card is a Sapphire RADEON X550 which I know isn't new, but it can output to a TV in 1024 x 768. My TV is a Samsung 40" LCD. The cable, linking the two, is a 15 pin d-sub connection either end which is a standard monitor cable. All I get is a black blank screen. I'm not sure if I have the card setup right. The DISPLAY - SETTINGS icon in CONTROL PANEL has the two screens numbered 1 and 2. My 1 screen is set to 1152 x 864 and my 2 screen is set to 1024 x 768. I'm not sure if this has anything to do with TV output as I assume its for dual monitors.

Can somebody point me in the right direction. I am obviously overlooking something really simple...any ideas?

Cheers,

Craig.

 

The resolution on older samsungs is not always 1024 x 768 via the vga cable, what's the model number of the tv ?

 

The TV is new this year, its a Samsung LE40F71. The TV is a Full HD 1920 x 1080P panel but the graphics card can only output 1024 x 768 via the VGA / d-sub connector. I'm assuming I'll only be able to get 1024 x 768, if I can get it to work.

 

My Tosh & DELL laptops have function button which I have to press to switch the outputs.

Have you tried yours?

 

Check the display frequency isnt set too high

 

I had the same problem and it was the frequency, my samsung LCD can only output at 60 hertz max and my PC was set to 70. I had to hock up my old monitor and change it..

 

My PC is a custom made desktop Micro ATX system so I don't think it would have the laptop custom buttons.

 

My frequency on the PC is set to 60Hz.

 

if you swap your screens what happens? i.e if u make screen 2 your main screen? Should at least see if it works.

Got TV in PC mode?

Can u try another output type i.e. s-video or video output?

Try another PC or laptop?

 

It may need the pc to be powered off, then boot it up with just the tv plugged in.

 

Is there an option in the display settings saying "extend my windows desktop to this monitor" ?