Low refreshrate

[ozsaip]

I connected my roku tv as third monitor through hdmi, it should support 4k at 60hz, but my option is limited to 30hz only. Any way to fix it?

7.0.1-1-cachyos
GNOME 50.1
nvidia (open source) 595.58.03

1920x1080 px @ 165.003 Hz - 340x190 mm (15.33 inch)
3840x2160 px @ 30 Hz - 1430x800 mm (64.51 inches, )
2560x1440 px @ 279.958 Hz - 600x340 mm (27.15 inch)

[Thor]

Try to lower the refresh rate of the other monitors. Select for all monitors 60 Hz and if it works, raise the refresh rate until it doesn’t work anymore. It could be a band width problem of the GPU.