Bad colour with TVout

ChaoticMonk

Member
Sep 21, 2004
43
0
0
Hi all,

I'm having abit of trouble with the tvout feature on my Leadtek GF6800!

The image on my TV almost seems black and white (very light hint of colour). Everything else on my TV seems to have fine colouring and the desktop is also colourful.

Is there anyway of increasing the colour settings? like you would with a TV!

Thanks in advance!
 

overtheradar

Junior Member
Oct 1, 2004
7
0
0
You saying by "everything else" you mean like channels/dvd/video system etc are displaying properly?

If that's the case then it has to do with the video out setup/compatibility. Make sure the right mode is enabled/supported on your TV. If you have a nstc tv then make sure you configure your tv out in that particlur mode. same goes for refresh rates etc. The software your client is using may have color adjustment settings. You need to give us more information, cant make heads or tails out of what you have supplied so far.
 

ChaoticMonk

Member
Sep 21, 2004
43
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0
I apologise for the lack of detail in my post but please bare with me :eek:

Yes by everything else I ment video, dvd player, consoles etc etc

My TV is a pal TV which can also deal with a NTSC signal (according to the manual) but I have chosen 'B/Pal' in my graphics card settings only cos thats what I used with my previous gf card (gf440mx) but I was unable to find a list somewhere which can help me determin which one I should be using.

I use powerDVD and windows media player to play the stuff on my TV and I will have a look to see if there is a way for me to change the colour settings but even if I do find it it won't fix the desktop colour on the TV but that shouldnt be a big deal!

I've set my TV out to 1024x768 32bit high colour and B/Pal. Contrast brightness and gamma have all been left on defult along with everything else in the 'colour correction' section of my screen properties.

My gfx card is connected to my tv via a svhs to scart cable (exact same cable I've used with my previous card).

If you need anymore info please let me know!

Thanks again ^_^
 

ChaoticMonk

Member
Sep 21, 2004
43
0
0
Well it lets me pick it and my TV seems to display it so... :confused:

I have also tried 800x600 (which is what I used with my old gfx card) but that didnt do anygood except crop out some things!
 

monzie

Senior member
Oct 28, 2003
247
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0
Okay, if you're in North America, Japan, Korea, the Philippines and parts of South America, use NTSC.

Most other areas of the world use PAL (UK, most of Euope, Aus, NZ) or SECAM (France, Egypt and most middle east countries)..

The usual cause for colour loss when using S-Video is cheap/poor cables IF EVERYTHING else is set up correctly...... OR, (in the case of S-Video), you are not using a dedicated Y/C input chanel on the TV.

S-Video splits the Black and White and Colour, aka Chroma (Y) and Luma (C), chanels over 2 chanels within the S-Video cable and re-merges them at the TV end into a colour picture via a 'comb filter'...the B&W chanel has preference over the colour chanel so any weekness in the cables results in colour loss.

As for TV-Out @ 1024 using S-Video cables...errrrrrr.... thats guys been smoking/drinking something...those figures are THE INPUT to be converted to PAL or NTSC (576@25 or 480@29.97 lines res) and NOT the TV-out resolution at all, thats set by deciding your countries TV format (PAL, NTSC.. which sets the scan res and fps).

HTH
 

cygan

Member
Sep 30, 2004
70
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0
The card you are presently using could be cheap card, and TV outs from such cards are bound to be many shades lighter than what you see on your monitor. Moreover, It is better watching the same on your monitor , than the TV because of your monitors better resolution.. A roundabout would be to use a branded card like ASUS or Gigabyte, after checking the specs for high res. TV display.
 

monzie

Senior member
Oct 28, 2003
247
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0
Originally posted by: cygan
The card you are presently using could be cheap card, and TV outs from such cards are bound to be many shades lighter than what you see on your monitor. Moreover, It is better watching the same on your monitor , than the TV because of your monitors better resolution.. A roundabout would be to use a branded card like ASUS or Gigabyte, after checking the specs for high res. TV display.


The above is not 100% true.

High resolution grafix (like the desktop or a pc game or MS Word etc) will indeed be poor on a normal TV as fine detail (like fonts) will be decimated by the pc resolution to TV resolution conversion >typically 1024 X 768 to 704 X 480 or 576 (or thereabouts).

Video (avi's, mpeg/mpeg2) files on the other hand will look far BETTER on a TV than on a pc as they are typically designed to work with TV resolutions.....AND..a typical TV offers a far bigger screen than a normal sized monitor..and a TV will saturate the colours better than a monitor.

What you may find though, is that the BRIGHTNESS levels on the TV need to be dropped a bit to get good CONTRAST.....this can easily be done by adjusting the BRIGHTNESS of the TV when playing a black video file (typically the Titles of a movie) and adjusting downwards until the BLACK looks like black again instead of a dark mucky grey.....doing this will also help in INCREASING the sharpness of the TV picture.

As for branded cards being somehow 'better' is also a bit of a none starter ... its called MARKETING to the gullable and impressionable and anyway whats LEADTEK if it isnt a known brand?.

As for the very first line of that quote...............COMPLETE CRAP.

 

bamacre

Lifer
Jul 1, 2004
21,029
2
81
I'd also try pulling the s-video cable out and back in.

The first time I tried the TV output on my TV, I didn't have the s-video cable in all the way, and I got a b&w screen.