Getting 1080i resolution on HDTV monitor using DVI-I to HDMI?

[foXtrot]

Hey I don't know much about TV's or HD stuff so I am hoping you guys can help me out with my problem. I have a ATI Radeon 9800 Pro with VGA, S-VIDEO and DVI-I ports. My TV has 2 component, 1 VGA and 2 HDMI ports, no DVI port, and including others that don't apply. It is also HDCP compatible.

Right now I have the two connected through VGA to VGA. As a result I have the monitor's native resolution (1360x768). I was wondering if it would be possible to get 1080i resolution (1920x1080i) if I connected it via DVI-I to HDMI? And also would any DVI-D to HDMI cable work or do I need to buy a specific one from ATI? Would this work?

[gmansixfo]

You wont get more than the tv's native resolution. So no you cant get 1920x1800 (which is 1080p not 1080i)

[Chrono6456]

"A 720p signal is made up of 720 horizontal lines. Each frame is displayed in its entirety on-screen for 1/30th of a second. This is know as progressive scan (hence the 'p')The quality is like watching 30 photographic images a second on TV. A 1080i signal comprises 1080 horizontal lines but all the lines are not displayed on-screen simultaneously. Instead, they are interlaced (hence the 'i'), ie every other lines is displayed for 1/60th of a second and then the alternate lines are displayed for 1/60th of a second. So, the frame rate is still 30 frames per second, but each frame is split into two fields, which your brain then puts together subconsciously."

Taken from a site, basically, 1080i is not 1920x1080 resolution, its just a switching of every other frame to make it LOOK, like a 1920x1080 resolution. If you want to have your brain tricked, and still be watching a picture that is only as high as your tv's native resolution, they by all, go ahead. Also, I dont think a GFX card gives out interlaced pictures, becasue all our monitor resolutions are outputted progressive scan.

[foXtrot]

Originally Posted by Spartan–117

"A 720p signal is made up of 720 horizontal lines. Each frame is displayed in its entirety on-screen for 1/30th of a second. This is know as progressive scan (hence the 'p')The quality is like watching 30 photographic images a second on TV. A 1080i signal comprises 1080 horizontal lines but all the lines are not displayed on-screen simultaneously. Instead, they are interlaced (hence the 'i'), ie every other lines is displayed for 1/60th of a second and then the alternate lines are displayed for 1/60th of a second. So, the frame rate is still 30 frames per second, but each frame is split into two fields, which your brain then puts together subconsciously."

Taken from a site, basically, 1080i is not 1920x1080 resolution, its just a switching of every other frame to make it LOOK, like a 1920x1080 resolution. If you want to have your brain tricked, and still be watching a picture that is only as high as your tv's native resolution, they by all, go ahead. Also, I dont think a GFX card gives out interlaced pictures, becasue all our monitor resolutions are outputted progressive scan.

My driver software claims to support 1080i, but I don't care if its not progressive scan.

720p and 1080i HDTV Mode Support

The CATALYST Software Suite 4.10 introduces support for both 720p and 1080i HDTV mode for both CRTs and DFPs. A new properties tab labeled Troubleshoot is added to the ATI Classic Control Panel for both the FPD and Monitor properties page. The Troubleshoot tab will allow users to force 720p and 1080i modes.

[Sinfulfate]

Originally Posted by foXtrot

My driver software claims to support 1080i

It does but 1080i is not 1920x1080. 1080p is.
-= Double Post =-

Originally Posted by foXtrot

My driver software claims to support 1080i, but I don't care if its not progressive scan.

720p and 1080i HDTV Mode Support

The CATALYST Software Suite 4.10 introduces support for both 720p and 1080i HDTV mode for both CRTs and DFPs. A new properties tab labeled Troubleshoot is added to the ATI Classic Control Panel for both the FPD and Monitor properties page. The Troubleshoot tab will allow users to force 720p and 1080i modes.

You mean your graphics card support it? Thats different but like what was said before you cant use a resolution that is higher than your monitors native resolution. Just like with your 360. Your xbox 360 can support a 1920x1080 resolution but only if the monitor/tv its being dispalyed on can go that high.

[foXtrot]

Originally Posted by Sinfulfate

It does but 1080i is not 1920x1080. 1080p is.
-= Double Post =-

You mean your graphics card support it? Thats different but like what was said before you cant use a resolution that is higher than your monitors native resolution. Just like with your 360. Your xbox 360 can support a 1920x1080 resolution but only if the monitor/tv its being dispalyed on can go that high.

Yeah both my video card and HDTV support 1080i so this should be no problem right?

[Sinfulfate]

Originally Posted by foXtrot

Yeah both my video card and HDTV support 1080i so this should be no problem right?

Yup but it wont say 1080i because its a pc your trying to hook up right? So just hook it up via vga and use your monitors native resolution and your set.

When looking at display resolutions for a pc you shouldnt have the mindset of 720p/1080i/1080p since pcs have alot more resolutions then those.