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3870 HDMI to HDTV Question

post #1 of 11
Thread Starter 
Ok, I bought a new HDTV that does 1080i resolution. I bought an HDMI cable and was able to get 1080i resolution coming from my PC. I played a regular DVD on the TV last night and it looks spectacular.

I read somewhere that DVD players on PCs automatically upconvert the DVDs they play. Is this true, or is the DVD that is playing from my pc on my 1080i HDTV, still playing at its non-HD resolution?
post #2 of 11
Thread Starter 
I'm going to make my question a little more specific.

I am using Cyberlink PowerDVD Ultra to play DVDs out to my HDTV via a DVI-HDMI cable in 1080i resolution. Through the ATI Avivo technology, and the PowerDVD software, are my DVDs getting upconverted when they go out to the TV? In the Configuration Panel, "Hardware Acceleration through ATI Avivo" is checked, and under Advanced Video Options, Hardware De-interlacing is selected as well.

I'd like to upconvert DVDs from my PC if possible, but want an easy solution, I don't have patience to mess around with FFdshow or anything like that.

So, I need to know weather or not DVD Upconverting is already occuring or whether I need to find another solution.
post #3 of 11
Yes, PowerDVD will upconvert. I believe you have to have your resolution set to 1080 on the card but it will do it.

Also all the video processing is done on your card and not on the pc, thats what the Avivo is for.
post #4 of 11
Yeah, I have the same card and use it on my hdtv which does 1080p. I check the incoming signal to the TV and it says 1080p, so I guess mine gets upconverted too. I've used windows media player, media center, divx, and intervideo's windvd and they all look great.

Seems like it's a nicer way of "stretching 480p" http://en.wikipedia.org/wiki/Video_scaler

You might want to also try 720p.
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post #5 of 11
Quote:
Originally Posted by dr4gon View Post
You might want to also try 720p.
Ya, forgot about that. If you want to get technical, you are only drawing 540 lines of picture per refresh, and with 720 you get, well, 720 lines per refresh. Some say it is better but most of the time you can't tell the difference anyway.
post #6 of 11
Thread Starter 
Thanks for all the help everyone. Are there ant other programs for upconverting that anyone knows of?
post #7 of 11
Hi guys,

I have a different question, but I think it belongs under the same thread title so rather than make a new thread I thought I'd just post it here.

I have just installed a HD3870, and am using a 32" HD TV as my display, the 2 are connected by a DVI - HDMI cable (no DVI-HDMI converter connected to the graphics card). I am using the latest Catalyst Control Centre and I can only seem to get the output set to 720p, which is a resolution of 1280 x 720 and a refresh rate of 60Hz. If I set the display to 1080i (1920 x 1080) this will only work at a refresh rate of 30Hz and therefore is too flickery. I have tried "forcing" a 1080p resolution at 60Hz but nothing happens.

I play my xbox 360 through the same TV at 1080i resolution and 60Hz refresh rate, so I don't think its the TV is the reason for the problem.

Does anybody know how I can set a 1080i resolution with a refresh rate of 50 or 60Hz so its much more useable?

Any advice would be really appreciated.

Thanks in advance

Jay
post #8 of 11
Thread Starter 
Quote:
Originally Posted by Jay Scott View Post
Hi guys,

I have a different question, but I think it belongs under the same thread title so rather than make a new thread I thought I'd just post it here.

I have just installed a HD3870, and am using a 32" HD TV as my display, the 2 are connected by a DVI - HDMI cable (no DVI-HDMI converter connected to the graphics card). I am using the latest Catalyst Control Centre and I can only seem to get the output set to 720p, which is a resolution of 1280 x 720 and a refresh rate of 60Hz. If I set the display to 1080i (1920 x 1080) this will only work at a refresh rate of 30Hz and therefore is too flickery. I have tried "forcing" a 1080p resolution at 60Hz but nothing happens.

I play my xbox 360 through the same TV at 1080i resolution and 60Hz refresh rate, so I don't think its the TV is the reason for the problem.

Does anybody know how I can set a 1080i resolution with a refresh rate of 50 or 60Hz so its much more useable?

Any advice would be really appreciated.

Thanks in advance

Jay
I had the same issue when I first got my LCD. The only way I got around it was to force a 1920x1080 resolution. The only refresh rates that it detected though were 29i and 30i. Even then it wasn't full screen. You might want to check the manual, or look online to check what the supported refresh rates are for the TV. When you force the 1920x1080 res, try forcing 30Hz Interlaced. Might look a little better - there should be an advanced setting that allows you to do that. Let me know if that works.
post #9 of 11
Err are you sure your 32" can handle 1080i/p?

Most 32" TVs can only do 720p, mine included.
post #10 of 11
Quote:
Originally Posted by Darkvette View Post
I had the same issue when I first got my LCD. The only way I got around it was to force a 1920x1080 resolution. The only refresh rates that it detected though were 29i and 30i. Even then it wasn't full screen. You might want to check the manual, or look online to check what the supported refresh rates are for the TV. When you force the 1920x1080 res, try forcing 30Hz Interlaced. Might look a little better - there should be an advanced setting that allows you to do that. Let me know if that works.
Thanks for your reply Darkvette, I was able to force the 1920 x 1080 resolution at the refresh rate of 30i, however the screen still looked pretty Flickery, and mine too was not full size. I'm currently running it at the resolution recommended in the TV manual which is 1360 x 768, refresh rate of 60Hz, though when I turn on the xbox 360 the TV shows "1080i 60Hz", so it must be able to handle that resolution or the xbox wouldn't display?

Maybe I should save up and get a 1080p TV ...
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