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Using a TV for display. Resolution problems.

#1AnDtuigeannTuPosted 8/24/2014 11:04:39 AM
I use an LCD TV for my display for my PC. My PC is hooked up via HDMI and my TV is fully HD (capable of 1080i etc.) but when I set my OS resolution to 1920x1080 the colours become ridiculously under-saturated, the text becomes pixelated and dull, the refresh rate defaults to 24hz, and my TV clips the edges of my screen.

I can map pixels 1:1 (only when at 1920x1080) but it doesn't fix any of the other problems. I've been using 1680x1050 @60hz (which works really well, the colours look good, the text is clear as day and there's no edge clipping) but the problem reappears when I play games. The TV automatically goes back to 1920x1080 and down to about 24hz from 1680x1050 @60hz. in most games when I set the res to 1680x1050, the TV just plain ignores the game and keeps the 1920x1080 with the low refresh rate and the edge clipping.

So what am I doing wrong here guys? Should I change the HDMI out for a DVI? the TV only has a VGA input or HDMI inputs (and SCART but that's irrelevant), would getting a DVI-HDMI make any difference even though the signal is the same?

Thanks for your help.
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#2Death_BornPosted 8/24/2014 11:14:31 AM(edited)
I had this issue too, you have to make sure to set the input type to "PC" instead of something else. You should be able to get perfect 1:1 pixels and 60Hz+ if you do it correctly. HDMI cable is fine, no need to use DVI or VGA at all.
#3EciDemonPosted 8/24/2014 11:17:39 AM
Tv often use overscan and such so you need to set it to 1:1 from the TV menu when you connect your pc.

You may also need to set the Dynamic range or black levels on your tv to Full, this should also be found some where in the menus.

As for the refresh rate, go into your graphics cards control panel and make sure to set refresh rate to 60hz when you run 1080p

You can also go Control Panel\All Control Panel Items\Display\Screen Resolution and then click Advanced. On the Monitor Tab you can set refresh rate.

I had some odd resolution during post and bootup when i connected via HDMI, so i took a dvi cable and a converter to fix that.
In windows though there was no difference and it worked just as it did with hdmi with all those quirks.
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#4WerdnAndreWPosted 8/24/2014 11:23:44 AM
If the max resolution on your lcd tv is 1080i then you have a 720p tv with a resolution of 1366x768.
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#5AnDtuigeannTu(Topic Creator)Posted 8/24/2014 11:27:20 AM
WerdnAndreW posted...
If the max resolution on your lcd tv is 1080i then you have a 720p tv with a resolution of 1366x768.


How do you figure? Genuine question, I'm not the most adept at displays.
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#6WerdnAndreWPosted 8/24/2014 11:33:53 AM(edited)
There are no 1080i (interlaced) LCD Tvs.
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#7AnDtuigeannTu(Topic Creator)Posted 8/24/2014 11:35:53 AM
WerdnAndreW posted...
There are no 1080i (interlaced) LCD Tvs.


Then I must be mistaken and the TV is 1080p? The TV settings say its aspect ratio is 16:9 and when I turn on the source for my PC the TV itself says the resolution is 1920x1080 @24hz
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#8WerdnAndreWPosted 8/24/2014 11:37:32 AM
What is the model # of your tv?
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#9AnDtuigeannTu(Topic Creator)Posted 8/24/2014 11:41:53 AM
LE40B551A6W its manufactured by samsung.
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#10WerdnAndreWPosted 8/24/2014 11:46:40 AM
The tv is 1920x1080p. You sure you selected the correct resolution in Windows? You can also set the refresh rate to 60hz under advanced settings.
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