F36 GNOME/Wayland cannot change monitor refresh rate

Ask Fedora
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1

Rather straightforward, fresh install of Fedora 36 Workstation, system is a desktop and has both an AMD CPU and GPU, specifically the Radeon 6800.

In the GNOME Settings application, the monitor resolution was set to its proper native 2560x1440, however the refresh rate is locked to 59.95 Hz and cannot be changed. In Windows 10, I can set this monitor to 120 Hz with 10-bit color and also HDR enabled, and there are zero bandwidth issues. I am using a new DisplayPort 1.4b cable.

I would think that the Tripp Lite KVM switch might be the issue… if it didn’t work perfectly in Win10, and also if the monitor weren’t properly detected, however Fedora can identify the monitor just fine. All of my best Google-fu has failed me in trying to resolve this one.

2

Welcome to ask.fedora @mecharuva

Could you please give us more info’s as :

inxi -Fzx in terminal and post the output as </> Preformatted text here.

3 
System:
  Kernel: 6.0.5-200.fc36.x86_64 arch: x86_64 bits: 64 compiler: gcc
    v: 2.37-36.fc36 Desktop: GNOME v: 42.5 Distro: Fedora release 36 (Thirty
    Six)
Machine:
  Type: Desktop Mobo: ASRock model: B550M Pro4 serial: <superuser required>
    UEFI: American Megatrends v: P1.70 date: 12/01/2020
CPU:
  Info: 6-core model: AMD Ryzen 5 3600XT bits: 64 type: MT MCP arch: Zen 2
    rev: 0 cache: L1: 384 KiB L2: 3 MiB L3: 32 MiB
  Speed (MHz): avg: 2569 high: 4040 min/max: 2200/4635 boost: enabled
    cores: 1: 2200 2: 2290 3: 2014 4: 2020 5: 2048 6: 4040 7: 2200 8: 3800
    9: 2200 10: 2200 11: 2200 12: 3626 bogomips: 91032
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm
Graphics:
  Device-1: AMD Navi 21 [Radeon RX 6800/6800 XT / 6900 XT] vendor: Sapphire
    driver: amdgpu v: kernel arch: RDNA-2 bus-ID: 0c:00.0
  Device-2: Elgato Systems GmbH Game Capture HD60 S+ type: USB
    driver: hid-generic,snd-usb-audio,usbhid,uvcvideo bus-ID: 4-2.1:3
  Display: wayland server: X.Org v: 1.22.1.3 with: Xwayland v: 22.1.3
    compositor: gnome-shell driver: gpu: amdgpu resolution: 2560x1440~60Hz
  OpenGL: renderer: AMD Radeon RX 6800 (sienna_cichlid LLVM 14.0.0 DRM 3.48
    6.0.5-200.fc36.x86_64) v: 4.6 Mesa 22.1.7 direct render: Yes
Audio:
  Device-1: AMD Navi 21/23 HDMI/DP Audio driver: snd_hda_intel v: kernel
    bus-ID: 1-6:3
  Device-2: AMD Starship/Matisse HD Audio vendor: ASRock
    driver: snd_hda_intel v: kernel bus-ID: 0e:00.4
  Device-3: RODE Microphones NT-USB type: USB
    driver: hid-generic,snd-usb-audio,usbhid
  Device-4: Elgato Systems GmbH Game Capture HD60 S+ type: USB
    driver: hid-generic,snd-usb-audio,usbhid,uvcvideo bus-ID: 4-2.1:3
  Sound Server-1: ALSA v: k6.0.5-200.fc36.x86_64 running: yes
  Sound Server-2: PulseAudio v: 15.0 running: no
  Sound Server-3: PipeWire v: 0.3.59 running: yes
Network:
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    vendor: ASRock driver: r8169 v: kernel port: f000 bus-ID: 08:00.0
  IF: enp8s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
  Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel bus-ID: 09:00.0
  IF: wlp9s0 state: down mac: <filter>
Bluetooth:
  Device-1: Intel AX200 Bluetooth type: USB driver: btusb v: 0.8
    bus-ID: 1-9:8
  Report: rfkill ID: hci0 rfk-id: 0 state: up address: see --recommends
Drives:
  Local Storage: total: 13.66 TiB used: 2 TiB (14.6%)
  ID-1: /dev/nvme0n1 vendor: Intel model: SSDPEKNW010T9 size: 953.87 GiB
    temp: 34.9 C
  ID-2: /dev/nvme1n1 vendor: Western Digital model: WDS100T3XHC-00SJG0
    size: 931.51 GiB temp: 34.9 C
  ID-3: /dev/sda type: USB vendor: Western Digital model: WD Game Drive
    size: 10.91 TiB
  ID-4: /dev/sdb type: USB vendor: ASUS model: ROG ESD-S1C size: 931.51 GiB
Partition:
  ID-1: / size: 80 GiB used: 6.97 GiB (8.7%) fs: btrfs dev: /dev/nvme1n1p4
  ID-2: /boot/efi size: 2 GiB used: 13.9 MiB (0.7%) fs: vfat
    dev: /dev/nvme1n1p3
  ID-3: /home size: 209.5 GiB used: 68.81 GiB (32.8%) fs: btrfs
    dev: /dev/nvme1n1p5
Swap:
  ID-1: swap-1 type: zram size: 8 GiB used: 7 MiB (0.1%) dev: /dev/zram0
Sensors:
  System Temperatures: cpu: 60.5 C mobo: N/A gpu: amdgpu temp: 36.0 C
  Fan Speeds (RPM): N/A gpu: amdgpu fan: 0
Info:
  Processes: 407 Uptime: 1h 28m Memory: 15.54 GiB used: 3.65 GiB (23.5%)
  Init: systemd target: graphical (5) Compilers: gcc: 12.2.1 Packages: N/A
  note: see --rpm Shell: Bash v: 5.2.2 inxi: 3.3.21