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Connect TV to laptop and its black and white - why?

by JillH / November 25, 2004 9:32 PM PST

With my last laptop I connected it to the TV (I teach and I use the TV instead of a blackboard - I type and kids see it on the tv)
With my new laptop (LG-LM50 and I love it) I got a new cable, plugged in and I can see the images but no matter what i do I can't seem to get anything but black and white on the TV.
Any ideas very gratefully received. Thank you

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Re: Connect TV to laptop and its black and white - why?
by R. Proffitt Forum moderator / November 25, 2004 10:37 PM PST

Try this. Change the refresh rate on the laptop to 60Hz.

What happens?

Bob

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Re: Connect TV to laptop and its black and white - why?
by JillH / November 26, 2004 12:06 AM PST

I went into properties and 60 is the only option it gives me as the option hide rates that arent available was ticked - so it's already on 60.
Could you help me with what to try next please?
thank you

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Re: Connect TV to laptop and its black and white - why?
by R. Proffitt Forum moderator / November 26, 2004 12:09 AM PST

Now try 640x480 display. Some sets will go b/w when presented with other sizes.

Then you try another TV.

I don't repair TVs so you'll have to call the TV repair person if it works on another set.

Bob

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Re: Connect TV to laptop and its black and white - why?
by JillH / November 26, 2004 12:24 AM PST

I can't put my lap top on 640x480 as it only goes down to 800x600.
It's not a TV problem as it works fine with my old laptop (Dell Inspiron) although I have to go into settings and take it down from 32 million to 16 and then back up again to get colour - but it DOES give me colour.
Unfortunately no matter what I try with this LG LM50 it just won't give me colour.
I remember seeing somthing on here about people with the same problem when I was investigating S-vid cables as my Dell doesnt have the typical 4 pin so I had to buy another cable.
I am running XP with sp2

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That could be it.
by R. Proffitt Forum moderator / November 26, 2004 12:40 AM PST

I will ignore your words of denial that it can't be such and such. My background includes CCTV, video and more design so I can write with some authority in this area.

Some laptops produce non-standard NTSC or PAL output so you have to make do by setting the closest VGA mode to NTSC/PAL that VGA has and that is 640x480.

You may have found a laptop that is unsuitable for use with that particular TV. But some will go in denial over such.

Your choice.

But now ask the laptop maker for 640x480 support and how to select NTSC or PAL settings.

Bob

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