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Thread: TV's D-sub has developed a fault - what are my alternatives?

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    Senior Member cptwhite_uk's Avatar
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    TV's D-sub has developed a fault - what are my alternatives?

    Been trying to source the cause of visual defects in the signal from the PC to the TV for the last few weeks. The original set-up was:

    PC > DVI Port > DVI to D-sub converter > D-sub cable > TV

    I've been getting horizontal interference lines which jump around the screen, and after a while get worse without any cables being touched, which makes me think it was something to do with noise build-up of some description related to act of making the connection, strangely it's normal for the first couple of minutes when you boot. Having swopped the D-sub cable, tried hooking up a laptop instead of the PC, tried a different DVI to D-sub converter, tried a different DVI port on the graphics card I'm left with the only reasonable conclusion that the TV's D-sub port is knackered. Fortunately I have an un-used HDMI port and S-video for back-up.

    Now the PC can provide DVI, but the laptop only has D-sub. I've been considering running the laptop as the media player for a number of reasons:

    * I have a dock for it, so I can just hook everything into that, then plug the laptop in as and when I want to use it as a media player
    * More energy efficient
    * It's quieter

    The laptop can handle upto 720x480 which is good enough for me, and also has it's own DVD drive which is useful for DVD Player functionality. It's a dual core CULV 1.2Ghz / GMA900 / 2Gb / 12" machine.

    My question then is, what's the best way to get from D-Sub to the TV's HDMI port. I have 3.5" Jack going from the Dock to the TV to supply rhe audio which is all I need.

    Is it simply a case of buying a D-Sub to DVI converter block, then plugging in a DVI > HDMI cable to the TV?
    Last edited by cptwhite_uk; 05-12-2009 at 10:34 AM.

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    Senior Member cptwhite_uk's Avatar
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    Re: TV's D-sub has developed a fault - what are my alternatives?


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    Does he need a reason? Funkstar's Avatar
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    Re: TV's D-sub has developed a fault - what are my alternatives?

    Quote Originally Posted by cptwhite_uk View Post
    Is it simply a case of buying a D-Sub to DVI converter block, then plugging in a DVI > HDMI cable to the TV?
    Unfortunitely, unlike DVI, HDMI has no provision for analogue signals at all. So you cannot get VGA through HDMI with a combination of adapters, the signals will just disappear.

    You will need something along these lines to actually digitise the VGA signals and make them available to the HDMI connector:
    http://www.tvcables.co.uk/cgi-bin/tv...converter.html

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    Senior Member cptwhite_uk's Avatar
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    Re: TV's D-sub has developed a fault - what are my alternatives?

    Thanks Funkstar, I was worried that would be the case. I'm loathed to spend £50 just to make the bloody thing work properly. I might just consider selling the TV and buying a new one, it's a 3 year old Hanns-G 26" which cost me £300 at the time. Might just sell it on and buy a shiny 32"

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