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Go Back   Blu-ray Forum > Displays > LCD TVs

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Old 06-21-2010, 09:41 PM   #1
PCFan PCFan is offline
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Oct 2008
Default Not getting 120hz to my LCD TV from PC

I recently bought a Sony 32" 1080p 120hz LCD. I tested my PC on it and I can only select 59hz or 60hz for 1920x1080. There is no 120hz option in the refresh rate settings of the resolution properties in the Nvidia Control Panel. I thought that 120hz was the refresh rate of this TV. Is 120hz just the motionflow thing on this TV and not the refresh rate? I tried motionflow and it doesn't work consistently, it glass smooth then judders for a 1 or 2 seconds then glass smooth again on a DVD I was watching. I also heard that motionflow causes input lag so I disabled motionflow. Did I waste money on 120hz if I don't want to use motionflow? How do I know I'm getting 120hz refresh rate?
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Old 06-21-2010, 10:06 PM   #2
tvine2000 tvine2000 is offline
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Originally Posted by PCFan View Post
I recently bought a Sony 32" 1080p 120hz LCD. I tested my PC on it and I can only select 59hz or 60hz for 1920x1080. There is no 120hz option in the refresh rate settings of the resolution properties in the Nvidia Control Panel. I thought that 120hz was the refresh rate of this TV. Is 120hz just the motionflow thing on this TV and not the refresh rate? I tried motionflow and it doesn't work consistently, it glass smooth then judders for a 1 or 2 seconds then glass smooth again on a DVD I was watching. I also heard that motionflow causes input lag so I disabled motionflow. Did I waste money on 120hz if I don't want to use motionflow? How do I know I'm getting 120hz refresh rate?
From what i understand the tv refreshes at 120hz using motion flow or not.I have a samsung led 120hz with the same type of thing like motion flow. On bd movies i don't like using motionflow or anything like that. If you want a glass smooth look you can get that by setting your dnr on the tv or bd player to high.
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Old 06-21-2010, 10:24 PM   #3
PCFan PCFan is offline
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From what i understand the tv refreshes at 120hz using motion flow or not.I have a samsung led 120hz with the same type of thing like motion flow. On bd movies i don't like using motionflow or anything like that. If you want a glass smooth look you can get that by setting your dnr on the tv or bd player to high.
By glass smooth I mean glass smooth motion video. Sometimes with motionflow on I get stuttering intervals for 1 or 2 seconds in between glass smooth motion video on a DVD I tried out. If my TV is 120hz then I don't know why I'm not getting 120hz refresh rate on my PC which has a GTX 480 video card.
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Old 06-21-2010, 11:19 PM   #4
HiDefRev HiDefRev is offline
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Default 120 Hz

Your TV refreshes at ( displays ) 120 frames per second, no matter what the input is. It has absolutely NOTHING to do with anything hooked into it. 120 Hz is its native rate. It displays EVERYTHING at 120 Hz. There is nothing you can do to change it. And the juddering is common to ALL LCDs. There is nothing you can do about that , either, except for exchanging it for a plasma, which doesn't judder. Your computer is sending out the video stream at 60 Hz ( frames per second ). Your TV is displaying this at 120 Hz, as it will do with any signal put into it.
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