144hz monitor running at 60hz

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Anthony_244

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Aug 3, 2017
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I have a GN246HL BBID 3D from acer but it is running at 60hz. I am running Windows 10. If anyone can help, please do. Thank you.
 
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Are you using a HDMI cable ? Because a dvi is required to runn at 144hz
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Deleted member 1560910

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Are you using a HDMI cable ? Because a dvi is required to runn at 144hz
 
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Mark_1970

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Nov 14, 2015
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Yep HDMI will only run 60hz
 
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Anthony_244

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Aug 3, 2017
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Oh I found out what was causing the problem. I was using an HDMI cable instead of DVI. Switching to DVI solved the problem.
 
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bystander

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There has been some confusion on this issue, but no, HDMI 1.3 doesn't support 120hz. It can support HD3D at 60hz (per eye) at 720p, but not 120hz. HDMI 2.0 is required and that has to be supported by both the GPU and display.
 
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atomicWAR

atomicWAR

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Oh that 1.3 bit is news to me but I did know 2.0 works for certain but the trick is, most display makers don't support it regardless which is lame. HDMI has been articifially handicapped in that sense to much. Not to say display port isn't just generally better, it is. Being a TV gamer...one 4K 60hz @55" and one 1080P 60hz @42" I don't ever get the display port support I would like (or gsync :( ). I would really like to see more TVs support 120hz native input though. It is the one thing being on a big screen that kills me. I use to compete in the q3a days and miss higher refresh rates the old CRT panels had and now modern PC panels do. But once I got use to 42-55" a few feet away I couldn't go back to smaller panels. I love that i can get the display to take up a larger portion of my vision then a monitor can (least without having my nose pressed against it).
 
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bystander

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The reason it works in HD3D is because it actually sends 2 images at once at a rate of 60hz to be displayed one after the other, which technically is 120hz worth of images. The display then shows each image to your two eyes one after the other, but for normal 120hz, HDMI 1.3 (and 1.4) can't send single images at 120hz. It's known as frame packing, and I have heard of hacks to apply it to 2D, but you obviously have to add a fair bit of latency to make it work.

Anyway, HDMI 2.0 is the first to allow 120hz outside of frame packing (HD3D or hack with latency issues).

So the confusion arises because people see it handles HD3D at 60hz and assumes it handles 120hz without, which it doesn't.
 
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