I got the 4k Resolution activating mst mode - still stuck on 30hz. can someone give me the link to the intel driver with the custom res. settings dialog
I gather that as of the last month or so the stock Intel video driver might now support this resolution without installing the generic Intel driver. If so, you may just need to set the custom resolution at 50hz and it will work.
Do you have the Intel HD Graphics program running in your system tray?