Windows 7: TV not detecting laptop from S-video

I have a NVIDIA GEFORCE 8400 GS video card and i have a dell vostro 1500 laptop with a 7 pin s-video output. i have the cable and just bought it and hooked it up to my tv

The problem is most likely not that the TV doesn't see your laptop, but that the laptop isn't doing anything with the TV yet.

I have an NVidia GeForce 7400 Go in my Dell laptop. I'll doublecheck your version specifically, but in the meantime, how my interface works... Right click on your desktop and select "Nvidia Control Panel." In the left pane, you should see "Set up multiple displays," or something of that sort. That should give you the controls you're looking for.

it only detects the laptop display it doesn't give me any other options

On my TV I have to choose the input then the laptop see it. Try logging off/on after hooking it up.
Jerry

it still not working i wonder if when i upgraded from xp to windows 7 i lost that ability to use the s-video port and vga because it worked before that

Not to worry. I do this with my laptop all the time. There's a bunch of things that could easily go wrong. Every time I plug a different monitor in there's a like a mental checklist I have to go through. Now I'm still on XP on the laptop but I assure you, it is not that Windows 7 is "incompatible" with S-video or VGA.

(Sorry, I couldn't find any screencaps from the 8400 control panel, but shouldn't be that different from mine.)

1. Check the S-video connection between the laptop AND TV, just to make sure.
2. TV is ON. If it isn't set to the correct input, this will all still work. You'll just have to cycle through inputs/channels til you see the computer screen on one of them.

3. Do you see "Run Multiple Display Wizard" above the highlighted Set Up Multiple Displays?


If so, click "Run Multiple Display Wizard," and that should help you set things straight.
If not, your laptop does not recognize that another monitor is plugged into it. (This option goes away when there is no other monitor plugged in.)

4. As in the following screencap, "1." will ONLY show the option "Only use one display (Single)" when there is nothing else plugged in or recognized. If you see the other options to "Clone" or "DualView," just check one of those boxes. "2." has a drop-down selection list. If another monitor is listed here, you'll have the options to use only one or the other or set which one is primary.


5. If you see nothing indicating that there is an external monitor (your TV) plugged in, then there might be a driver issue. This also seems likely given that you upgraded to 7 from XP on the same machine, correct? Windows 7 may not have installed a driver for that particular port on your laptop. Click "Start," Right-click "Computer," select "Manage," then in the left pane click "Device Manager." Any yellow question marks will show that the laptop doesn't know what to do with that port.

Beyond that, honestly I've never had a situation quite like yours... I've installed all the drivers for my rig on my laptop's hard drive(XP), but that was because I hot-swapped the hard drive into the rig itself. I also had each individual driver installation disc, so it was easy... Hm...

Let us know how these things check out!

Miranova, thank you for the suggestions but still isn't working. my laptop isn't recognizing the tv but i was wondering if you knew where i could get the drivers online and download to see if that would be the issue? If not don't worry about it i appreciate the work. thank you

It's cool, like I said there's a lot to check. & sure. I just had to think for a second there & then remembered where the laptop's drivers are-- The Dell website. Here's your model's list, but you'd probably be best off entering your Service Tag. (on a sticker underneath your laptop)

Drivers & Downloads