I recently bought a monitor (U3818DW) from Dell which supports 3840*1600. I connected my stick pc from intel (STK2m3W64CC) and found that the pc doesn't display the full resolution of 3840*1600. It can only recognize the resolution of 2560*1440 as its maximum and recommended display. I installed the all latest drivers from Intel but It seems like they don't work. Is anybody having similar problems? If you do, please help me out!
Usually, your monitor manufacturer will provide an INF file that defines the supported resolutions. If one is available, load it and this issue should fix itself on the next reboot.
Hope this helps,