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Do I need a dual-link DVI cable?
Tuesday, 31 July, 2007
I've recently bought a mini-DVI to DVI cable. Well, supposedly it's a DVI-D dual link output, but I don't have a DVI0D dual link cable - I've only found a VI-D single link cable.
I have a 19" Samsung TV monitor.
The problem is that some resolutions can't be displayed. It can only go up to 1280x720, but that's not the optimised resolution, I want it to go up to 1440x900. If I buy a DVI0D dual link cable, will that solve my problem?
Thanks!
Mike , ,
 I'm hoping that some other readers can help Mike because I don't know the answer.
Perhaps you should ask Samsung for advice. Or you could buy the dual-link cable on the basis that you can return it if it doesn't solve your problem. Paul Zucker
 Reader solutions
Dual link is better than big mouthPosted: 04/11/2008 re: Do I need a dual-link DVI cable? Well, it's easy to tell from which country "Ja" is from. Such a loud mouth. People can see that.
It is true that, perhaps not manufacturers, but retailers frequently misunderstand dual-link concept and spread that bull to customers. Dual-link indeed increases the resolution beyond 2.75M pixels @60Hz. However, Matthew is in a sense correct that there are actually two physically separate outputs in dual-link. So, in principle, it is possible to connect two monitors to a single dual-link port, with a hack (i.e. make the graphics card to go to dual-link mode by altering the EDID code and so on). However the output won't be the desired one.
Ja2Posted: 24/05/2008 re: Do I need a dual-link DVI cable? Hi,
I am wondering if there is a need to check if all monitors support DVI-dual links? If so, what are the extras offered? JaPosted: 10/04/2008 re: Do I need a dual-link DVI cable? @Matthew
From your post people can only see that youre stupid as you weightt (times 100k)!!!!! loooool
DVI Dual-Link means that it supports BIGGER Resolutions and at higher refresh rates, not 2 Monitors as you thought.
Everything else you said is wrong, you picked up parts from million sources and put them together as you like, not as it should be! WilliamPosted: 16/08/2007 re: Do I need a dual-link DVI cable? Yes you need a DVI dual link cable to support higher resolutions.
See the article here:
www.datapro.net/techinfo/dvi_info.html#Page03 ScrumplesPosted: 10/08/2007 re: Do I need a dual-link DVI cable? Shot in the dark, but I think it is probably because your graphics/video card or the integrated graphics chipset on your motherboard cannot support 1440x900 resolution. Is 1280x720 the last one on the list when you try to change the screen resolution? Then it is probably the highest resolution your hardware can display. Since there is nothing to upconvert, like in a home theater setup, the moniter will only display the highest resolution of the your source (your pc). One solution is to install a graphics card that can display the resolution you desire. 1440x900 is an odd resolution, so you will probably need one that exceeds both numbers. You can choose between cards of various maximum resolutions here (http://www.bizrate.com/graphicscards/
refine__att--109__att109--more.html). Second you could use a tv tuner card that can output the resolution, however I know of none that has a dvi output; except the daughter card that is made to work with the Myhd tv tuner card, but it is not really worth it unless your in the market for a tv tuner card. MatthewPosted: 03/08/2007 re: Do I need a dual-link DVI cable? I'm not sure if this helps, but here is my two cents.
I recently bought a system that has a DVI-D dual link output and a fantastic 22" wide screen monitor. I too went searching for a dual link cable to support two monitors, only to discover that by DVI-D dual link, the manufacturer meant that the graphics card could support two VGA outputs (using the DVI-D to VGA adaptor and the VGA port on the card) or a single DVI-D output for higher resolutions (e.g. 1440 x 900). It would be worthwhile contacting the manufacturer of the graphics card directly to confirm if the graphics card does actually support two outputs from the DVI-D port and if the higher resolutions are supported for both outputs or only one. Unfortunately it seems that we once again have a confusing code/standard where DVI-D dual link is sometimes being used to indicate two output ports and other times to indicate two outputs from a single DVI port.
Cheers,
Matthew. |