Hey folks, I am having some monitor troubles. I just got a LG 32GS95UE, and I can't seem to get it to render faster than 95Hz. I don't really game much, but I figured this would be the place to ask!

So far what I have tried is simply running xrandr --output DisplayPort-1 --mode 3840x2160 --rate 240 which bumped the monitor settings from 60Hz to 95Hz, but I don't know where to start looking for issues past that. My GPU is a Radeon VII, which is ancient but should be plenty capable of rendering at a high refresh under normal conditions. Further, rocm-smi reports 0% GPU usage, which means it is not being stressed at all

From inxi:

Graphics:
  Device-1: Advanced Micro Devices [AMD/ATI] Vega 20 [Radeon VII]
    driver: amdgpu v: kernel arch: GCN-5 pcie: speed: 8 GT/s lanes: 16 ports:
    active: DP-3 empty: DP-1,DP-2,HDMI-A-1 bus-ID: 0c:00.0 chip-ID: 1002:66af
    class-ID: 0300
  Display: unspecified server: X.org v: 1.21.1.18 driver: X: loaded: amdgpu
    dri: radeonsi gpu: amdgpu display-ID: :0 screens: 1
  Screen-1: 0 s-res: 3840x2160 s-size: <missing: xdpyinfo>
  Monitor-1: DP-3 mapped: DisplayPort-2 model: LG (GoldStar) ULTRAGEAR+
    serial: <filter> res: N/A dpi: 140 size: 697x392mm (27.44x15.43")
    diag: 800mm (31.5") modes: max: 3840x2160 min: 640x480
  API: EGL v: 1.5 hw: drv: amd radeonsi platforms: device: 0 drv: radeonsi
    device: 1 drv: swrast gbm: drv: kms_swrast surfaceless: drv: radeonsi x11:
    drv: radeonsi inactive: wayland
  API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 25.2.4 glx-v: 1.4
    direct-render: yes renderer: AMD Radeon VII (radeonsi vega20 ACO DRM 3.61
    6.12.51) device-ID: 1002:66af
  Info: Tools: api: clinfo, eglinfo, glxinfo x11: xprop,xrandr

Yeah:

    xserver = {
      enable = true;
      xkb.layout = "us";
      videoDrivers = [
        "amdgpu"
        "radeonsi"
      ];
      displayManager.startx = {
        enable = true;
      };
      desktopManager = {
        xterm.enable = false;
      };
      windowManager.bspwm.enable = true;
    };