PC and HDTV

Dreglor · Post by **Dreglor** » Tue Oct 02, 2007 7:02 am

I just recently got a new computer and recently i tried to it up to my nice 42' lcd hdtv which accepts rgb input (also with dvi, YCrCb component, and hdmi) and found that my nivida 8800gts video card wouldn't go any higher than 1366x768 which doesn't show up when I use my monitor and weirder while also plugged into my monitor is that the resolution can be set to 1280x1024
knowing that the hdtv accepts all the way to 1080i resolution (1920 x 1080)

I wasn't aware that monitor cables had inputs and windows can tell what monitor it's plugged into...on that note is there any way to use the 1080i resolution or do i have to use some a converter to use hdmi or component i haven't tried the dvi output yet, I already use a converter to connect my monitor and hdtv to the rgb cable.

DoubleDutch · Post by **DoubleDutch** » Tue Oct 02, 2007 9:07 am

Sometimes on some HDTV's, even though they have a resolution of 1920x1080, they only go upto 1280x1024 or something - when the vga input is used!

It's pretty strange. The only thing I can think of is that the true resolution of the TV is lower and they downscale the normal picture OR that the interface that drives the TV itself doesn't convert to the signal that drives the panel at a higher resolution than 1280 pixels across?

Maybe this will change in time?

Nik · Post by **Nik** » Tue Oct 02, 2007 10:59 am

I would think that you must use hdmi or dvi to get the full resolution

Dreglor · Post by **Dreglor** » Wed Oct 03, 2007 12:26 am

the tv can display that resolution, I've seen it and it does state that it's native resolution is 1920x1080, the problem is that the video card or vista won't "Support it"
which is complete bogus the recent drivers from nivida have some stuff relating to HD output so i see whats up with that

J. Baker · Post by **J. Baker** » Wed Oct 03, 2007 12:40 am

Are you running the 64bit or 32bit of vista? My understanding is that the 32bit doesn't fully support HD.

Dreglor · Post by **Dreglor** » Wed Oct 03, 2007 10:21 pm

32bit, I wasn't aware that 64 bit had anything extra to 32 bit execpt for having everything in 64bit...
I have the 64 bit version available to me and i can run it but i turned it down just because of that very reason

blueznl · Post by **blueznl** » Wed Oct 03, 2007 10:27 pm

Several possible reasons:

1. Your TV only supports selected resolutions via the VGA port. I know my television (A Philips Ambilight) has some restrictions.

2. Most TV's will not accept 'overscan' on the VGA port. As the native resolution in Full HD features a little overscan, they may only accept slightly lower resolutions from a VGA port. (I've seen that happening, fortunately my Philips doesn't do that

)

3. The resolution may be blocked in the driver. I've run numerous times into cards that did not support a certain resolution on their (S)Video output. In some cases it needed a hack (one of the older ATI cards I once (and shortly

) owned had this issue, for example).

4. The hardware cannot generate the specified resolution. Now this should never be the case on a VGA port, but it was the case on (S)Video and composite outputs.

5. Your television is reporting a certain resolution and Windows limits your screen output to that resolution. Now this one is easy, tick somewhere 'list all resolutions' then pick the one you want.

So, any or all of the above

Just pick a reason you like, and there are probably more

Well, I'm not going to lug around my brand new Dell Quadcore XPS710 to see if my television accepts all the resolutions of the 8800GTX, sorry