Thank you very much for your help. Used the code but with DP1 instead of HDMI1, no errors but did not give me the 60hz refresh rate. I do have the same nuc as BoKKER. I also installed windows today to make sure I was not crazy and to make sure bios and firmware were up to date and was able to get 3840X2160 @60. I included a pic below.
I have also attached a link to my log. NSZY
Also here is the xrandr command I tried
LibreELECnuc:~ # xrandr --output DP1 --mode 3840x2160 --rate 60.00
LibreELECnuc:~ # xrandr
Screen 0: minimum 8 x 8, current 3840 x 2160, maximum 32767 x 32767
DP1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 1430mm x 800mm
3840x2160 30.00*+ 24.00 29.97 23.98
4096x2160 24.00 23.98
1920x1080 60.00 59.94 30.00 24.00 29.97 23.98
1920x1080i 60.00 59.94
2880x480 60.00 59.94
1280x720 60.00 59.94
1024x768 75.03 70.07 60.00
1440x480 60.00 59.94
800x600 72.19 75.00 60.32
720x480 60.00 59.94
640x480 75.00 60.00 59.94
720x400 70.08