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S-video with HDTV

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Old 10-22-2007, 10:45 PM   #1  
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Default S-video with HDTV

I just bought an Insignia 37" LCD HDTV. Prior to this, I connected my computer to my analog TV via the S-Video port of my GeForce FX 5200. Now, I don't have the options to use the TV as a second monitor. Any thoughts what I can do to get this working again? I need this because I use my computer to record OTA ATSC video.
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Old 10-22-2007, 11:59 PM   #2  
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Ok, I got it so that in Display Properties, I can choose two displays. The S-video to the TV still doesn't work though. The funny thing is, now my main monitor is shown as #2, and the TV as #1.

Is there any guides out there for how to hook up a TV as a second display? I've had problems before with this, and it sometimes gets mangled up. I usually stumble around until it works. I am using XP.
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Old 10-23-2007, 09:36 AM   #3  
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1st off, does your TV have a VGA/RGB input? If so, I would recommend using that over S-video.

Using S-video, what resolution are you choosing (if you can at all)?
Can you select the Display (display 1) or is it greyed out? And under display, can you select the display or default monitor and the proper display adapter?
Is the secondary monitor enabled?
To enable your secondary monitor

Open Display Properties in Control Panel.
Click the Settings tab.
Click the secondary monitor icon, and then click Extend my Windows desktop onto this monitor.

Make sure you have the latest Nvidia drivers and try using the connection software..
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Old 10-23-2007, 11:57 AM   #4  
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My TV doesn't have a DVI input, but it does have a 15-pin PC input. I will switch from S-Video to a monitor cable when I get ahold of a long enough monitor cable. I have a 25 foot S-Video cable, and that barely reached to my old analog TV. With the new TV, the ports are on the right side instead of the middle, so doesn't quite reach. I went to Radio Shack, and bought an S-Video coupler so I could couple together two S-video cables to reach the connector.

It looks like I will have to buy a 50 foot monitor cable, unless there are sizes sold between 25 feet and 50 feet. It's not that long on a straight shot, but it has to go behind furniture, so the cord isn't in the way. On the other hand... I could go straight across the room if I disconnected the cable when I wasn't using the TV as a display. I use the computer as my DVD recorder, so I wouldn't need to hook it up too often.

On my old analog set, I set the resolution to 800x600, and that worked well enough. My video card does have two monitor ports, so that should work out well enough. I tried resolutions of 800x600 and 1024x768 with the new TV without luck.

I will try connecting my laptop to the TV via S-video and/or monitor cable, just to see if it works. If it doesn't work when connected from my laptop, then something else is wrong.
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Old 10-23-2007, 12:47 PM   #5  
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Yea, VGA will be a much better option over S-Video. VGA will support the higher/HD resolutions and S-video is 480i (640x480). 800x600 is probably the lowest resolution option you have for your video cards display properties. With VGA, just choose the option that works best and is closest to your LCD's native resolution (most likely 1366x768). 1024x768, 1280x768 or 1366x768 will be possible good choices. Here is a 35ft.VGA cable with 3.5 mini audio cable for $17..

http://www.monoprice.com/products/pr...seq=1&format=2
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Old 10-23-2007, 02:04 PM   #6  
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Thanks for the info, the prices that I had seen for such long video cables were around $35. I can temporarily yank the monitor cable from my desktop to hook my laptop to the TV, if this works, I'll order the cable.
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Old 10-23-2007, 10:31 PM   #7  
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I got it to work from my laptop to the TV via the monitor port, so it looks like this is going to work for me. I'm guessing that the reason the S-Video didn't work was that the new TV couldn't take an 800x600 input via S-Video. The analog TV could, but the screen only showed part of the picture. If I really wanted the S-Video to work, I suppose I could boot into Safe Mode, where I get a 640x480 resolution.
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Old 10-24-2007, 12:59 AM   #8  
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Cool. I think the reason S-Video worked with your CRT monitor is that it is 1080i and can scale a 800x600 signal into 1080i. But your 720p LCD cannot. Not sure, but just a guess. Anyway, you should be able to play HD resolutions with your VGA connections as long as your VGA/RGB port supports it.
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