Unable to change refresh rate, AMD GPU

[Forpli]

Do you have multiple monitors connected (more than one monitor)?
How is the monitor connected (HDMI, DP,...)?

With brand new hardware you'll need to install a later kernel and mesa drivers.

[HOW TO] Easily install a later Kernel (Needs Net Connection)

Updated as of Mar 28 2025 To install the Mainline Installer: add the repository: sudo add-apt-repository ppa:cappelikan/ppa Update sources and install: sudo apt update && sudo apt install mainline Launch Mainline from App Menu or terminal, and select the kernel you wish to test. To use TuxInvader Kernel: These are not Microsoft signed, so Secure Boot must be disabled in BIOS Settings. Add repository: If using Zorin OS 16: sudo add-apt-repository ppa:tuxinvader/lts-mainline If usi…