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Cannot control resolution options for TV via HDMI from Nvidia 1080 in High Sierra

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Oct 10, 2012
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6700k
Graphics
1080ti FTW3
Mac
  1. iMac
hi guys,

I’ve spent hours on this issue as per title. Basically, in display preferences, I can control (have options) to control the resolution for my monitors. However, it is not appearing for my HDMI connected 4K TV. All connections are via my 1080ti.

The only options that appear for my tv are displaying the ‘size of the text’ and overscan. Reason I’m asking is that I had the resolution option before in Sierra, and as it currently stands, the tv is running at 4K at 24hz for my High Sierra, and it’s a bit laggy. I want to drop the resolution and up the refresh rate. Something I was able to do in Sierra.

I don’t know if there is a Kext I’m missing, or a setting I’ve missed, as I’ve fresh installed High Sierra.

Thanks!!
 
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