TV-out problem on Toshiba laptop

Archived from groups: alt.comp.periphs.videocards.ati (More info?)

andmoreagain kirjoitti:
> Hi everyone,
>
> i have a Toshiba Satellite laptop with a Mobility Radeon graphics chip
> and i'm having trouble getting the TV-out to work. I have an s-vhs cable
> from the laptop into my TV via a SCART adapter but the picture is in
> black and white. i've played around with the ati settings to no avail.
> also, when i play video files, they don't appear on the TV - only on the
> laptop screen. Is it likely to be a problem with the laptop, the
> cable/adapter, or the TV? the TV is a cheap one but it does connect OK
> via SCART to my digibox and DVD player. the cable is also cheap but I
> would have thought it would be OK. any help appreciated!
>
> thanks
>
> neil

Your TV most likely does not support s-video. You can connect an s-video
cable via scart, but it won't work if the TV doesn't support it. The
picture will be black and white since the TV isn't capable of receiving
separate chrominance (colors) and luminance (brigthness) signals (which
is what is carried via s-video). Only the luminance part is shown, hence
b&w.

There might be an option somewhere in Mobility Radeon TV-out settings to
change the tv-out signal to COMPOSITE. You'd still use the same exact
cables you do now (the s-video) but the signal carried would hold both
color and brightness information on the same pin.

If not, you could try to find an S-Video to Composite adapter on a local
electronics shop. It shouldn't cost too much.

Archived from groups: alt.comp.periphs.videocards.ati (More info?)

vellu wrote:
> Your TV most likely does not support s-video. You can connect an s-video
> cable via scart, but it won't work if the TV doesn't support it. The
> picture will be black and white since the TV isn't capable of receiving
> separate chrominance (colors) and luminance (brigthness) signals (which
> is what is carried via s-video). Only the luminance part is shown, hence
> b&w.

that sounds likely. its a cheap-o tv - it only has one scart input and
no actual s-video input. i'll try looking for an s-video > composite
adapter. thanks for your help

Archived from groups: alt.comp.periphs.videocards.ati (More info?)

vellu wrote:

> If not, you could try to find an S-Video to Composite adapter on a local
> electronics shop. It shouldn't cost too much.

one last question, if the TV doesn't support s-vhs, will an adapter make
any difference? i mean, won't the signal still be the same however it
plugs into the TV - it will still be an s-vhs signal, not a composite one?

neil

Archived from groups: alt.comp.periphs.videocards.ati (More info?)

vellu kirjoitti:
> andmoreagain kirjoitti:
>
>> Hi everyone,
>>
>> i have a Toshiba Satellite laptop with a Mobility Radeon graphics chip
>> and i'm having trouble getting the TV-out to work. I have an s-vhs
>> cable from the laptop into my TV via a SCART adapter but the picture
>> is in black and white. i've played around with the ati settings to no
>> avail. also, when i play video files, they don't appear on the TV -
>> only on the laptop screen. Is it likely to be a problem with the
>> laptop, the cable/adapter, or the TV? the TV is a cheap one but it
>> does connect OK via SCART to my digibox and DVD player. the cable is
>> also cheap but I would have thought it would be OK. any help appreciated!
>>
>> thanks
>>
>> neil
>
>
> Your TV most likely does not support s-video. You can connect an s-video
> cable via scart, but it won't work if the TV doesn't support it. The
> picture will be black and white since the TV isn't capable of receiving
> separate chrominance (colors) and luminance (brigthness) signals (which
> is what is carried via s-video). Only the luminance part is shown, hence
> b&w.
>
> There might be an option somewhere in Mobility Radeon TV-out settings to
> change the tv-out signal to COMPOSITE. You'd still use the same exact
> cables you do now (the s-video) but the signal carried would hold both
> color and brightness information on the same pin.
>
> If not, you could try to find an S-Video to Composite adapter on a local
> electronics shop. It shouldn't cost too much.

PS. Do you have different AV channels on your TV set? For example, my TV
set has two SCART slots and corresponding two AV channels AV1 and AV2.
But only slot number two supports s-video, and even then I need to
select a third AV channel AV2-S to get a color picture (at the same time
channel AV2 shows a b&w image).

Archived from groups: alt.comp.periphs.videocards.ati (More info?)

andmoreagain kirjoitti:
> vellu wrote:
>
>> If not, you could try to find an S-Video to Composite adapter on a
>> local electronics shop. It shouldn't cost too much.
>
>
> one last question, if the TV doesn't support s-vhs, will an adapter make
> any difference? i mean, won't the signal still be the same however it
> plugs into the TV - it will still be an s-vhs signal, not a composite one?
>
> neil

Well, I guess I should've said S-video to Composite CONVERTER... It
should be short cable with an S-video plug in one end and and an RCA
plug in the other, and some dongle in between.

Hi there,

I have a Thomson 21mg17e TV and want to connect it over a S-Video output of my Toshiba Satellite laptop (ATI graphics) to the SCART outlet. However, all the effort was without success. What could be the reason for getting only blue screen on the TV, and not being able to find the TV among the options in the laptop ?

Thanks in advance !

 
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