Refresh Rate stuck on 29.98 Hz instead of 30 Hz on 4K

General Help
1

I am running Zorin OS 18.1 on my more than capable laptop and when i use it on my monitor I cannot change the refresh rate to 60 Hz the only forced option is 29.98 Hz and I can't find a way to change it without lowering the resolution which is a worst case scenario.

2

Maybe vid card hdmi cable isnt correct for 4K 60hz? I hear not all hdmi cables are created equal

3

Welcome to the Forum!

Does Your Monitor support 60Hz at 4K Resolution? Can You name Brand and Model?

4

Its a HP U28 monitor and it does support 60Hz and 4K as i do that when i dual boot windows

5

Okay, I took a quick Look at the Monitor. Some Questions:

  • How is the Monitor connected? HDMI or DisplayPort?
  • Does Your System run in Wayland or X11? You can check that with the Terminal Command echo $XDG_SESSION_TYPE
  • What Graphics Card do You have? If Nvidia: What Driver do You use?
  • Are Secure Boot and Fast Boot in BIOS disabled?