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New HDTV/monitor won't go past 720p (and it should)

post #1 of 13
Thread Starter 
I just picked up my Magnavox (Phillips) HD 26" today and it looks great for 360 and PC games, but it won't go to it's recommended resolution: 1366x768. It's just stuck at 720p.

Any ideas?

I'm using the latest 8800 drivers and it just blacks out whenever I try to set a custom resolution. It auto-recognizes the monitor's resolution as 1080i (since it can do it), but whenever it's set to that the screen flickers because of the refresh rate which seems to be locked at 60.

Help. Please. I can't find answers anywhere.
    
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post #2 of 13
Quote:
Originally Posted by Starscream View Post
I just picked up my Magnavox (Phillips) HD 26" today and it looks great for 360 and PC games, but it won't go to it's recommended resolution: 1366x768. It's just stuck at 720p.

Any ideas?

I'm using the latest 8800 drivers and it just blacks out whenever I try to set a custom resolution. It auto-recognizes the monitor's resolution as 1080i (since it can do it), but whenever it's set to that the screen flickers because of the refresh rate which seems to be locked at 60.

Help. Please. I can't find answers anywhere.
How can it do 1080i if the vertical resolution is only 768? I think that monitor is designed to be 720p.

EDIT: Also what kind of connection are you using, DVI?
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post #3 of 13
Thread Starter 
Quote:
Originally Posted by aaronman View Post
How can it do 1080i if the vertical resolution is only 768? I think that monitor is designed to be 720p.

EDIT: Also what kind of connection are you using, DVI?
It down-scales 1080i to 720p (or something similar; it has both settings). It is designed to run 720p, but it's recommended resolution is 1366x768. I'm using a DVI->HDMI. I've read that this can limit you to the HD standards of 480/720/1080, but a friend of mine has a 32" running DVI->HDMI @ 1366x768. His also runs 720p and supports 1080i.
    
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post #4 of 13
I believe 1366x768 can only do 720p.

If you want 1080i/p, then i think you need a monitor that does 1920x1080 or something like that.
post #5 of 13
a 720p television WILL DO 1080i. 1080i is NOT 1080p, though, do not confuse the two.

Your resolution will go no higher than the monitor's resolution, but 1080i is only half the resolution of 1080p. That's not EXACTLY how they can do it, but it's just kinda the easy way out of explaining the difference.
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post #6 of 13
1366x768 is just another resolution for 720p.

If your max res is 1366x768, it cannot do 1080i... Its impossible, it doesnt have enough pixels.

It may "SAY" 1080i but its just downscaling the 1080i to 720p.

Just run it at 720p.
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post #7 of 13
Thread Starter 
Quote:
Originally Posted by Murlocke View Post
1366x768 is just another resolution for 720p.

If your max res is 1366x768, it cannot do 1080i... Its impossible, it doesnt have enough pixels.

It may "SAY" 1080i but its just downscaling the 1080i to 720p.
I know it's downscaling. That's fine - it still looks really good. I'm wondering why I cannot get my resolution in nVidia's control panel to go to 1366 x 768.
    
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post #8 of 13
Quote:
Originally Posted by Audi View Post
a 720p television WILL DO 1080i. 1080i is NOT 1080p, though, do not confuse the two.

Your resolution will go no higher than the monitor's resolution, but 1080i is only half the resolution of 1080p. That's not EXACTLY how they can do it, but it's just kinda the easy way out of explaining the difference.
Actually 1080i is not half the resolution of 1080p, it's just interlaced... I is for interlaced

It just alternates between even and odd scanlines every other frame, so the 1080i still has a vertical resolution of 1080 as does 1080p
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post #9 of 13
Sorry, 1080i is 540 lines of resolution.

Quote:
Some broadcasters use 720p50/60 as their primary high-definition format; others use the 1080i standard. While 720p presents a complete 720 line frame to the viewer between 24 to 60 times each second (depending on the format), 1080i presents the picture as 50 or 60 partial 540 line "fields" per second (24 complete 1080-line fields, or "24p" is included in the ATSC standard though) which the human eye or a deinterlacer built into the display device must visually and temporally combine to build a 1080 line picture - in CRT type display. To get all 1080 interlaced lines to appear on the screen at the same time on a progressive high-definition display, the processor within the HD set has to weave together both 540-line segments to form the full-resolution frame. It does so by holding the first field in its memory, receiving the next field, then electronically knitting the two fields together. The combined fields are displayed at once as a complete 1080p frame. The main tradeoff between the two is that 1080i may show more detail than 720p for a stationary shot of a subject at the expense of a lower effective refresh rate and the introduction of interlace artifacts during motion. 720p is used by ABC and ESPN because the smoother image is desirable for fast-action sports telecasts. Fox Broadcasting Company uses the tagline "the nation's finest high-definition standard" in advertising its 720p programming.
http://en.wikipedia.org/wiki/720p
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post #10 of 13
Quote:
Originally Posted by Starscream View Post
I know it's downscaling. That's fine - it still looks really good. I'm wondering why I cannot get my resolution in nVidia's control panel to go to 1366 x 768.
Yea your TV only supports 720p. Don't worry.. IMHO 720p is far better then 1080i. Interlaced sucks.

On my 1080p TV, I either run 720p or 1080p. Never 1080i.

On a 26" TV I doubt 1080p would even be noticable. Its very hard to tell the difference between 720p and 1080p unless you get a bigger screen.
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