simple question for pro's

I

its_hey_ma

New Member
I was looking at hooking my pc up to my tv through a rgb to s-video adapter I picked up. Once plugged in, the picture is all scrambled. I'm guessing it has something to do with display size and refresh rate, but does anyone know how to make it work? I figured the people here would know best!
 
Try setting the screen resolution at 800 x 600 pixels and the refresh rate at 50 Hz (or 60 Hz, depending on where you live).
 
Lorand said:
Try setting the screen resolution at 800 x 600 pixels and the refresh rate at 50 Hz (or 60 Hz, depending on where you live).
Click to expand...

i did, and that didn't seem to change anything. Any other solutions?
 
Lorand said:
How that adapter looks like? Could you provide a link to its description?
Click to expand...

I can look for a pic of it somewhere, but its just a vga plug with about 2-3" of cable going to a rca output and about 2-3" of cable going to a s-video output
 
As far as I know, those adapter cables won't work with any video cards. I think the problem is that the tv doesn't recognize the syncro sygnal of the vga output.
Have you tried both the composite and s-video plugs?
 
It must be a video signal synchronization issue. What video card do you have? Does its driver have the option in advanced display settings to modify the synchronization type?
 
Lorand said:
It must be a video signal synchronization issue. What video card do you have? Does its driver have the option in advanced display settings to modify the synchronization type?
Click to expand...

it says its an nvidia riva tnt2 model 64 pro

i'm not sure what you mean by synchronization type
 
Lorand said:
As far as I know, those adapter cables won't work with any video cards. I think the problem is that the tv doesn't recognize the syncro sygnal of the vga output.
Have you tried both the composite and s-video plugs?
Click to expand...

yes, the s-video gave me a blurry view of the screen 3 times in one picture.
 
A TV or monitor must receive two type of synchronization signals to recompose the picture. The Vsync is related to the refresh rate and because it's adjustable from the display properties, it can be made the same as regular TV-signals have. The problem is with the Hsync which has very different values for TV-sets and monitors: the TV-standard is around 15 kHz, while for monitors its typical values can be between 30 and 65 kHz. Probably your videocard's Hsync is around 45 kHz, that's why you see three times the computer screen. And you can't change that value from the display properties...
So to connect the TV-set to the computer you'd need a vga to composite (or S-Video) converter box, just like this one: http://www.smarthome.com/7743.html
 
Lorand said:
A TV or monitor must receive two type of synchronization signals to recompose the picture. The Vsync is related to the refresh rate and because it's adjustable from the display properties, it can be made the same as regular TV-signals have. The problem is with the Hsync which has very different values for TV-sets and monitors: the TV-standard is around 15 kHz, while for monitors its typical values can be between 30 and 65 kHz. Probably your videocard's Hsync is around 45 kHz, that's why you see three times the computer screen. And you can't change that value from the display properties...
So to connect the TV-set to the computer you'd need a vga to composite (or S-Video) converter box, just like this one: http://www.smarthome.com/7743.html
Click to expand...

HA!

Sorry, but its just not worth $80 to me. I guess I'll just keep saving for a new monitor
 
this is what the cable says:

VIDEO Card to S. Video and TV Adapter Cable Connector: D-Sub High Density 15 pin Male to Mini Din 4 pin Female and RCA Jack Cable: UL 2919 Coaxial Low Voltage Computer Cable.
 
You must log in or register to reply here.
Back
Top