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Computers/HTPCs A place to discuss your computer setups, PC requirements, ATI Wonder Card, etc. ![]() |
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#1 |
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A couch and an HDTV to go please.
Join Date: Oct 2004
Posts: 13
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I see that alot of the current HDTV's DVI input will not properly display from a PC's DVI output. I recently purchased an Xtasy x800xt video card for the PC I am building. I am hoping to be able to use this as a computer monitor for gaming & watching DVD's in HD, but I am not sure if my TV will support the DVI output. If you know anything about this please let me know what the best solution is, thanks.
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#2 |
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A couch and an HDTV to go please.
Join Date: Oct 2004
Posts: 13
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Anyone? I have also read up on powerstrip & the ATI DVI to VGA adapter. With the use of these two items could I get this working the way I want (pc720p gaming!)?
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#3 |
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Administrator
Join Date: Apr 2004
Location: Katy, Texas
Posts: 12,337
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You didn't say what model you are talking about, but the user's manual for the Cineos 55" 55PL9524/37 at http://www.p4c.philips.com/files/5/5...37_dfu_aen.pdf shows both a DVI and a VGA connection.
Usually when you are speaking of a TV unless it specifically says it will accept a PC input, the PC video card has to be set up to match what the TV requires. Two main differences between a computer monitor and TV are refresh rates and overscan. TVs usually will operate with a fixed refresh rate of 60hz (in the USA) and will be set to overscan the received picture signal to push 2-15% of the picture off the edge of the screen. Computer monitors will allow for higher refresh rates to eliminate flicker and will display the entire picture signal received with no overscan. The video card you select needs to be able to output HDTV resolutions and timings. That is what you need to find out about your selection of the Xtasy x800xt video card. If you connect the PC through the DVI port, you can use the moninfo software to determine what resolution and timings the TV will accept. Most people who are connecting a PC to their TVs will use either the high end ATI Radeon or nvidia cards because there is more support software for this purpose. Maybe you could ask the Xtasy x800xt video card manufacturer what support they offer for connecting to a TV. |
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#4 |
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A couch and an HDTV to go please.
Join Date: Oct 2004
Posts: 13
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Actually I found someone on AVSforums who had already done the powerstrip on the Philips Cineos & gave the exact specs for our TV's. My model is the 55PL9773.
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#5 |
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High Definition is the definition of life.
Join Date: Nov 2004
Posts: 70
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I am so confused. TV does have over scan, and computer monitor does not. When we use TV tuner on computer and watch TV, I believe there is no over scan becuase of the monitor itself. WHY poeple don't make the TV using computer monitor technology? is there any copy right or stuffs like that? Or, the PCI TV tuner itself has over scan but I don't know?
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#6 |
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A couch and an HDTV to go please.
Join Date: Oct 2004
Posts: 13
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Yeah it's pretty stupid that a $50-100 PC monitor can correct overscan but not a $2,000-5,000 HDTV. Just goes to show you how far ahead of everyone else the PC companies really are.
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#7 |
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Administrator
Join Date: Apr 2004
Location: Katy, Texas
Posts: 12,337
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The TVs overscan partly because the broadcasters started using the first few lines of the video for data that shows up as video noise if it is displayed.
Why? Because in the early days of TV when everything was CRT based, yea verrily back in the days of black and white TVs, the TV tubes were round and in order to put a semi square picture on a round tube required the picture received to be overscaned. Additionally on a CRT TV the edges of the picture (top, bottom, left and right) where the retrace occurs is very difficult to keep straight and stable. So overscan solves this issue as well. Once TVs started using overscan to fix CRT problems there was several lines availble at the top and bottom of the picture for data, so they used it. This practice continues even yet today. By continuing this through to the CRT RP HDTVs, there is quite a bit of cost savings to be had by not having to build in the precision of a computer monitor. That is also why HDTVs are based on 60hz refresh rather than faster. |
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#8 |
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A couch and an HDTV to go please.
Join Date: Oct 2004
Posts: 13
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Thanks for the history lesson nick. BTW, with this TV you can see what he is talking about by pressing up, down, left, or right on your remote; which will actually shift your viewing screen in the corresponding direction. It's pretty cool to just see what he is talking about so you can kind of picture his description in detail.
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#9 |
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High Definition is the definition of life.
Join Date: Nov 2004
Posts: 70
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Thank for your info. If we build a computer monitor about 42" or larger which include tuner, it could cost more than a TV does at that size !?!
I know we can move the screen of laptop too. When I set the resolution larger than the screen native resolution, I can have option to move the screen. It looks like "over scan" on TV because I can not see the edges of all the windows???? Still, a little confused. How much that costs when we "correct" the TV technologies! hmm Now, the digital age. we have fixed pixel displays, just like computer monitors. If broadcasters send fixed pixel signals, I think we WILL NOT have over scan. Just like stream videos over internet! |
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