CentOS 7 and 4K display

[Jerry Geis <geisj@xxxxxxxxxxxxxxx>]

I installed C7 along with MATE desktop...

My monitor is a 4K unit but when I goto the
System -> preferences -> hardware -> Displays
there is selection for the 4K display. It stops at 1920x1080.

The var log x file shows the 4K resolutions in the file so that is good.

How do I get the selections for 4K to show up?

Thanks,

Jerry
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