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#80
First you should describe your problem. Hz related? Resolution related?
One problem I see is that your TV does not have an VGA port, only HDMI. The following resolutions are available when using the PC through HDMI:It's best to use the wide 1360 x 768 resolution, but if you read your TV's user manual, in page 36 there is an interesting note about 1024x768 and 1360x768 not distinguishable when received, so you need to select the “Input Signal” on the Setup menu manually, it will be remembered next time.Code:Resolution Horizontal Frequency 720 x 400 31.5 kHz 70 Hz -------------------------------------- 31.5 kHz 60 Hz 640 x 480 37.9 kHz 72 Hz 37.5 kHz 75 Hz -------------------------------------- 35.1 kHz 56 Hz 800 x 600 37.9 kHz 60 Hz 48.1 kHz 72 Hz 46.9 kHz 75 Hz -------------------------------------- 48.4 kHz 60 Hz 1024 x 768 56.5 kHz 70 Hz 60.0 kHz 75 Hz -------------------------------------- 1360 x 768 47.7 kHz 60 Hz -------------------------------------- 1280 x 1024 64.0 kHz 60 Hz
Nvidia can also treat your TV as... TV and you would have 720p/1080p signals. No point going further, you don't go to the dentist and tell him that your tooth hurts, without pointing which one
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In reverse:
- NOT.
- That's normal, it follows a different standard (this time, the correct one).
- The culprit it's not "Min V Rate" but "Max. Pxl Clk", and the first thing to try out is to put Safety margin to 0%. If it's still not good, then you should not cheat your Monitor Range Limits.
A 1080p PC signal requires a huge bandwidth, and your device has only 170Mhz. On lower resolutions you can use any timing standard as long as it fits in the Monitor Range Limits. But on high resolutions, using the CVT-reduced blanking is a must, it makes a huge difference in bandwidth.
LCDs do not need blanking intervals and this translates into less bandwidth requirements. Less bandwidth means cheaper components needed by the manufacturer but also overcomes the limits of the interfaces (VGA / DVI/Dual-DVI etc). VESA developed the CVT-reduced blanking standard specially to take advantage of this.
Joke: Samsung really went cheap , +3Mhz would have been enough to pass PED Helper's validation if Safety margin is on 0%(it's point is to provide a headroom, and manufacturers should do the same, but it looks like they dont like this concept).
I believe I said that my part of the guide is geared towards CRT's and similar devices (plasmas and some projectors). Shame on me for not emphasizing it enought. It's not a problem to update the guide for LCD's and recommend CVT-reduced blanking, but I was hoping to skip this technology
Not really, I was waiting for someone to point out the issue and hopefully gaining motivation. Hack, maybe I'll also change my old piece of junk CRT with a LCD after that.
Last edited by bobdynlan; 24 Sep 2009 at 11:15. Reason: Double post