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Help! DVI D to HDMI

post #1 of 26
10/18/06 at 1:57pm
Thread Starter 
I've purchased this cable:

http://www.ncix.com/products/index.p...facture=Others

To hook up my i9300 to this TV:

http://www.samsung.com/ca/products/t...s4041dxxaa.asp

It just arrived and i hooked everything up, i go into the Nvidia Control panel and it is not detecting the TV. and the option to select HDMI input on my TV is darkened out and not selectable. I have TV, xbox360,audio..etc everything is hooked up and everything works.

Not quite sure what to do here, drivers are updated, 6800 is running fine. i don't know where the problem could be.

So i'm turning to you guys..
HELP
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post #2 of 26
10/18/06 at 2:15pm
I just got a new 57" Mitsubishi 1080p DLP and I hooked up my i9300 to it and didn't have any problems. Using driver 91.28. (will post some pics when I get a chance)

All I did for set up was, open NVIDIA control panel, clicked on display, then chose the option for I think it was "multiple display wizard". But there was no indicator that I got on the PC that detected the TV as a device...The TV was able to detect the PC.

As far as the tv detecting the PC...IDK, I didn't have any problems. Order of powering up maybe?
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post #3 of 26
10/18/06 at 2:19pm
Have you tried pressing Fn + F8?
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post #4 of 26
10/18/06 at 2:19pm
The cable looks to be of questionable quality.
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post #5 of 26
10/18/06 at 2:30pm
I'm thinking a bad cable as well.
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post #6 of 26
10/18/06 at 2:30pm
It's not the cable, well not the quality at least. I remember something similar happening with my 700m via the S-Video output. I had a cable that converted the S-Video output to an RCA input and it wasn't recognizing my TV with it. Turns out that the laptop doesn't recognize displays attached via convertible cables like these. You have to have the same input on the display as the output on the laptop for it to recognize. I don't know if there are any workarounds out there, but I haven't heard of any yet.
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post #7 of 26
10/18/06 at 2:40pm
For mine I used both DVI-HDMI (the cable I already had that I was using for my HD cable box) and the DVI-DVI cable I'm currently using. I had no problems with either. So there isn't a problem using converting cables.
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post #8 of 26
10/18/06 at 2:41pm
Thus why the cable if os questionable quality usually a solution like this requires a converter box (expect to pay upwards of $100) those are assured solutions.
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post #9 of 26
10/18/06 at 7:29pm
"It is fully backward compatible with DVI - all that is required is a DVI to HDMI cable adaptor. This opens HDMI to a wide range of DVI-equipped products from a variety of manufacturers."

" Both are closely related in that HDMI uses the same digital encoding scheme used by DVI-D in the transport of digital video."

http://www.practical-home-theater-gu...mi-cables.html
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post #10 of 26
10/18/06 at 7:34pm
no conversion shoudl be necessary between DVI and HDMI, maybe try fn+f8 from in the the POST screen or when windows is booting, or hit f8 like you would load safe mode and on that menu hit fn+f8 to see if you can get a picture (regardless of drivers)
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post #11 of 26
10/18/06 at 9:09pm
Thread Starter 
Okay sorry people, shortly after i made my post i fiddled around with the connections and "found new hardware" pops up and everything works :\
i guess the cable wasn't fully connecting, ie: i didn't push it in hard enough for fear of breaking something.

thanks for the replies anyway!
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post #12 of 26
10/18/06 at 9:21pm
How's the display look? Are you able to set your video card to your TV's native resolution, 1366 x 768?
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post #13 of 26
10/19/06 at 11:19am
Thread Starter 
i'm confused with the resolution, 1360 x 768 is not even and option, and when i set it to 720p the borders get cut off, so in the Nvidia Control panel i did overscan compensation under Device Settings. I end up with a resolution of 1200x668 and everything fits perfect on the screen, looks good too.

i wonder why i can't use a higher res.?

I'm not complaining though, i get slightly better performace with the lower res, and the HUD in games are just the right size, except in WoW its a little too small and hard on the eyes.

Any ideas? anyone else have this problem? i dont mind not being able to achieve 1360 x 768 but i figured it would do 720p and fit in the screen just fine.

i just want to run it in native res. because native is always nicer and sharper.
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post #14 of 26
10/19/06 at 11:42am
"So I have one of the 1366x768 flat panels how do I get the best results with it?

Using 1366x768 causes one issue for a PC which is that 1366 pixels is not divisible by 8 and due to legacy issues PC graphics cards cannot typically produce a resolution that isn't divisible by eight. Thus 1360x768 or 1368x768 are the closest resolutions. The newest drivers from NVIDIA and ATI are fairly good at working with the 1366x768 sets and can set 1368 and trim 2 pixels off to match it.

NOTE: Custom resolutions such as 1360x768 are only available with VGA or DVI/HDMI. Component video ouput is locked into the standard DTV resolutions (480i, 480p, 576i, 576p, 720p, 1080i).

There is one problem that may prevent any 1366x768 compatible resolution from working which is not a PC problem. Many TV vendors do not expect a PC to be connected via DVI/HDMI, as such the DVI/HDMI input only accepts standard DTV resolutions. Download MonInfo and run it, it will tell you the various timings the port will accept. If you don't see a 136*x768 timing listed there isn't much you can do: try 720p or 1080i and see how it scales, or switch to VGA. Many vendors of 1366x768 sets that include a VGA port allow the custom timings over VGA."

http://www.htpcnews.com/forums/index...howtopic=12393
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post #15 of 26
10/19/06 at 12:10pm
Thread Starter 
Well, i've tried everything, i can achieve 1368x768 but it is a small rectangle in the middle of the screen and there is no way to stretch it.

I believe that anything under 720p fits and works fine, and as soon as i try a res higher than 720p (1368x768) it automaticaly switches into 1080i mode.

This is hard to explain.

720p and less is all showed in 720p mode, everything is nice and big and looks good, but then once i pass 1280x720 then it switched to 1080i and even 1368x768 can't take up the whole screen.

So basicly i'm stuck with 1200x668 in 720p mode, it is the only option that fill the whole screen, no borders cut off, readable text and decent sized HUD.

i would be totally content if it would just play 720p normally, frig.
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post #16 of 26
10/19/06 at 12:25pm
Thread Starter 
i dont understand this, both 720p and 1080i need to be scaled down to 1200x668 and 1808x1016 in order for everything to fit into the screen. whats up with that?
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post #17 of 26
10/19/06 at 1:23pm
Quote:
Originally Posted by ||T34418L3|1||
i dont understand this, both 720p and 1080i need to be scaled down to 1200x668 and 1808x1016 in order for everything to fit into the screen. whats up with that?

It's called overscan. TV screens always have had overscan, with a little of the image being off screen all the way around. You will get that when using digital input.

However if you have a PC input (analog Sub D - DB15 connector) input I highly recommend using that. It will be pixel perfect (1:1) and you can run native resolution, which is not possible for digital. Also the cables are cheaper and can be longer than the HDMI ones. The picture looks exactly the same using both. I wish I hadn't spent tons of money on a bunch of HDMI-DVI cables when I got my TV

Digital HDMI - has overscan, unable to run native resoltion, stuck at "standard modes" such as 480, 540, 720, 1080 etc

Analog Sub D (DB15) - no overscan (on an LCD anyways), can run native resolution (1360x768 and 1920x1200 are common)

It sounds backwards, but unless something has changed in the last 6 months, every single TV brand and model I tried worked this way. I ended up taking back a 50 inch plasma and getting a 40 Sony LCD to avoid the nasty overscan. I looked at every brand around, and every type, including newer LCD projections and plasmas. For PC viewing LCD is the only way to go.

Digital - bad
Analog - good
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post #18 of 26
10/20/06 at 12:00am
Thread Starter 
Ah crap , i wish someone told me this before i spent 40$CAD on a DVI D to HDMI cable....

Could you link me to the cable you're talking about?

would the Xbox360 VGA adaptor have this overscan issue as well?
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post #19 of 26
10/20/06 at 12:23am
Hey I spent 100+ USD on one 16ft cable alone.

It's just a normal VGA cable for connecting a PC to a monitor. You need a Male to Male cable. Some of these seem very cheap and are cheaply made so I would stay clear of the $2 cables. I would look at spending at least $10 or $20 on a decent cable in a brand you've heard of. I always buy mine locally at any store that sells computer cables. The longer cables are more expensive of course. Don't get one any longer than necessary so the signal quality is the best it can be.

http://www.newegg.com/Product/Produc...82E16812105801

or

http://www.newegg.com/Product/Produc...82E16812105803

or

http://www.newegg.com/Product/Produc...82E16882196003

or

http://www.newegg.com/Product/Produc...82E16882196009

And the with the xbox VGA cable it should look perfect, although you wouldn't notice any overscan much anyway because they make consoles & games knowing that there will be overscan on most TVs so there is nothing important on the very edge of the screen.
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post #20 of 26
10/20/06 at 9:10am
So I've got one of those VGA cables, that I connected up. Now I don't really know how to set up the TV with it. The only resolution I can get is 1024x768, which looks fine of course, but the TV is 1368x768.

I've got a XPSGen2 with a 6800Go and Dells original drivers. If I press Fn F8 then I can get the image on screen, but only at 1024x768. If I try multiple monitors, I can extend my desktop, but again only at 1024x768. There is no resolution, nor setting that I can find to give me the TV's native resolution.

I tried powerstrip, but I don't really know what I'm doing with it. I researched and thought NView would help, but there's no resolution setting that I can find.

Could use a guide to connecting up a HDTV to a laptop using SVGA cable really.....
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