Hello

I have laptop ASUS ROG G750 Series(Asus G750JX (G750JX-T4084H) ) and working under Linux Mint (Ubuntu). I got new monitor DELL U2718Q and I have a problem with 4K resolution and 60Hz.
Under windows 10 everything is ok and working with DELL U2718Q and 4K on 60 Hz. But under Linux Mint for 4K only 30Hz max available. Can't resolve this issue. Please see all details here:
1)https://forums.linuxmint.com/viewtopic.php?f=59&t=306388
2)https://devtalk.nvidia.com/default/topic/1068128/linux/linux-mint-with-latest-nvidia-drivers-and-4k-...
3)https://www.dell.com/community/Linux-General/U2718Q-Linux-Mint-Ubuntu-4K-only-30Hz/m-p/7434786#M1232...

I'm using mini display port to display port connection. Can you check if it is ok for this laptop under Linux Mint (UBuntu)?

Thanks in Advance