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hdmi to ypbpr converter issues

post #1 of 9
Thread Starter 
Hello, I figured this was an appropriate place for my question. Im trying to hook my laptop (hdmi) up to my old sony tv(rca,ypbpr,svideo). I purchased a converter box from overstock and hooked it up today. When I connect everything and turn my computer on it says "starting windows" on my tv but its split into three screens and then once my computer loads it goes to black and white snow with the widescreen bars at the top and bottom.

I tried connecting it while the computer was on and the laptop screen blinked then just showed my desktop with out letting me access the computer. This also resulted in widescreen snow on the tube.. I feel like I might need to set my computer resolution different on my laptop but windows 7 doesn't give you many options like switching from 16:9 to 4:3 ...Iv tried adjusting the resolutions but none of them have much difference on the black and white scrambled mess I get on my television.

Iv been searching for solutions for hours and if someone could help me out on here it would be much appreciated!
post #2 of 9
Have you contacted the manufacturer of the converter box?
post #3 of 9
Sounds like the converter box may be looking for consumer video timing while the laptop is sending computer video timing. They aren't the same. Another possibility (and my bet) is that the laptop's looking for an HDMI display with HDCP, and the converter isn't HDCP compliant.

Your computer is starting up in 640 X 480 resolution before Windows loads. This is close to the resolution that standard NTSC 4:3 TVs operated at and is the reason you can see some sort of picture during bootup. Once Windows loads, the video card's drivers kick in and the resolution changes to something the TV won't accept. Try setting Windows to 640 X 480 @ 60Hz, saving that, and then rebooting. It'll look pretty bad but should give you a picture.
post #4 of 9
Thread Starter 
Thanks for the response guys.

@ George : I bought the box from overstock overstock.com/Electronics/HDMI-to-5-RCA-Component-AV-Converter/4668491/product.html and the manufacturers name isnt even on the product. A bit more research and I found that the company who makes it is called LinkStyle and they're located in China. No luck finding any contact info for them..

@ Royce: I was told my someone on another forum that HDCP was my problem. I tried resetting my resolution all the way down to 640x480 and it seemed like I had the most luck at this resolution but its still displaying my desktop in 12 blurry strung together screens.. here Ill post a pic:
post #5 of 9
Thread Starter 
post #6 of 9
Unfortunately, you can't post links or pictures here until you have 5 posts...

Amazon also sells a box identical to the one you bought from Overstock, and it is claimed to be HDCP compliant. If this is true, then your issue is almost certainly the wrong resolution or timing from your laptop. None of these boxes will change input and output resolutions-they only convert digital signals to analog ones.

Another problem might be what you are trying to tell the laptop to do with the TV. I've seen a number of ways that laptop video cards handle external monitors. One is to treat the external display as the only display, turning off the laptop screen. Another is to clone the laptop screen so that it and the external display show the same thing. Finally, there is splitting the Windows desktop between the displays to give extra screen real estate. Some laptops can do all 3 modes, some can do 2, and some can do only 1.
post #7 of 9
Another issue you are going to have is what resolutions are compatible with your old TV... if it cannot accept 1080i and that is the defaut mode for converter box, you won't see an image on your TV unless you can force the converter box to a lower resolution somehow (manual button or DIP switch maybe or on your computer select an appropriate output resolution that is compatible with your TV).

Windows doesn't "own" video in your computer... the driver for your video subsystem typically controls things, at least for external interfaces like your HDMI port. So don't bother looking for settings in Windows... you want to open the Video Driver which will most often be Nvidia or ATI (though there may be some other brands out there). Right click your mouse on a blank area of your desktop. You should get a pop-up menu that lists several choices with the video driver showing up roughly in the middle of that pop-up menu... my laptop's driver says NVIDIA Ciontrol Panel, yours may say the same or something different. The driver that came with my laptop was initially customized by Toshiba and that line in the pop-up menu said something like Toshiba Video Driver but when I later updated the video drivers to a later version, the name changed to NVIDIA Control Panel so you may or may not see Nvidia or ATI... it may say something witht he computer manufacturer's name instead. There you can tell the computer and video system whether you want to use 1 or both displays and if you want to use both displays, you can choose which display is the primary display where your task bar appears and which display extends your desktop either to the right or left side of the "primary" display. You can also pick different resolutions for the 2 displays from that video control panel. Your computer display may be, say, 1280x800 while your TV needs to be 720x480 or some other resolution that is supported by the TV. If your converter box is converting 1080p from your computer's HDMI port to 1080p over component, that's highly unlikely to be displayable by your TV... you'll have to change the converter box to 1080i but even that might be too high a resolution for your TV (depends on how old it is and whether it is an HDTV or not). If it is an HDTV, it should accept 1080i over component but if that doesn't work, you can try 720p also. If your TV is NOT an HDTV, you MUST sent 640x480i or 640x480p and older non-HD TVs might not even take 480p.

If your converter box really does observe HDCP, it should NOT output 1080p over component video (limiting you to 1080i or lower resolutions). But your old TV MUST be an HDTV to accept 1080i or 720p.
post #8 of 9
Thread Starter 
I opened something called intel graphics and media control panel and under display settings there is a monitor/tv settings tab. I clicked on it and all it says is "Monitor / TV settings are not supported." Does that mean I need to update my graphics card to Nvidia or something like that so I can possibly adjust my HDMI output resolution and hopefully get some sort of image on my tv?
post #9 of 9
If you have a desktop computer, and it's a fairly basic model, it might have something non-adjustable for video. Laptop video is sometimes very basic, but most with HDMI outputs should have some adjustability. I think Intel does supply some VERY basic video subsystems... perhaps that's all you have (may be a chip on the motherboard). But even the $300 laptop I have has ATI video... if I right click on the desktop, the pop-up menu has a TINY almost illegible ATI logo followed by "Catalyst Control Center" and this appears at the top of the pop up menu rather than the middle of the popup menu as it does on my fancier laptop. So it may be that you haven't yet found the video driver... or that Intel subsystem with no adjustments may be it.

If you get an Nvidia or ATI board (for a laptop, it would probably have to be in the form of a PCMCIA card that plugs into the side of the laptop... a small board close to the size of a credit card), it may or may not be the solution you need to get an image to your TV - no guarantees that will be all you need. There are still questions about exactly what that converter box is doing and since none of us has one, we can't really say much one way or the other.
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