Do not be afraid to release the CAPS LOCK.
So the Intel support engineers can have more information about your system, Download, run, and save the results of this utility as a text file:
Then ATTACH the text file using the instructions under the reply window ( Drag and drop here or browse files to attach ).
Doc (not an Intel employee or contractor)
The size of the screen makes absolutely no difference (it could be 120 inches or more). It is the resolution of the screen - 720p, 1080p, 2K, 4K, etc. - that can or cannot be supported. In general, any of the processors with UHD support can handle any of the resolutions that I listed.
More information about the actual processor in question and the board that it is installed on is necessary to answer this question fully. In addition to the report that Al has asked you to upload, information about your system (manufacturer and model number) is necessary.