165Hz not available on Dell S2721DGF

[Marcio2AA]

Hello, I have two monitors, a Samsung that is set to 120hz on the HDMI and the main one is a Dell that accepts 165hz, but the Cosmic does not accept setting this frequency. I have an RX 6800, any resolution? Thanks in advance!

[jacobgkau]

I'm assuming this is on the COSMIC Epoch alpha?

Does the Dell display work at 165Hz when the Samsung one's unplugged? What are the exact model numbers? What connection type is the Dell display using?

[Marcio2AA]

Cosmic Alpha 4

Model Dell S2721DGF, Samsung C24FG7x. Even unplugging the Samsung, the Dell does not set 165Hz, Dell using DisplayPort, Samsung HDMI

[jacobgkau]

Ok, I see from https://www.dell.com/en-us/shop/dell-27-gaming-monitor-s2721dgf/apd/210-axeh/monitors-monitor-accessories that the Dell S2721DGF is limited to 144 Hz on HDMI, but is supposed to support 165 Hz on DisplayPort.

We do not have one of these for testing.