Issue with Odyssey G9 Monitor


I have an issue with my new monitor : Odyssey G9 from samsung. This monitor is suppose to support a defintiion of 5120 x 1440, but i can only have a 1600x900, and i can’t change anything.

The monitor is connected to a display port.

I searched the internet but could not find anything.

Thanks in adavnce for your help.

Can your GPU give this resolution again?
I used Google Translator …

Yes, this screen works perfectly on my windows session…

I use the same monitor - no problem.

What is the output of

inxi -Gxxx

Mine is

 $ inxi -Gxxx
  Device-1: AMD Ellesmere [Radeon Pro WX 7100] driver: amdgpu v: kernel
    arch: GCN-4 pcie: speed: 2.5 GT/s lanes: 16 ports: active: DP-4
    empty: DP-1,DP-2,DP-3 bus-ID: 61:00.0 chip-ID: 1002:67c4 class-ID: 0300
    temp: 74.0 C
  Device-2: Logitech HD Webcam C525 type: USB driver: snd-usb-audio,uvcvideo
    bus-ID: 2-2.4:6 chip-ID: 046d:0826 class-ID: 0e02 serial: 56B848E0
  Display: wayland server: v: with: Xwayland v: 22.1.8
    compositor: kwin_wayland driver: X: loaded: amdgpu unloaded: modesetting
    alternate: fbdev,vesa dri: radeonsi gpu: amdgpu display-ID: 0
  Monitor-1: DP-4 res: 5120x1440 size: N/A modes: N/A
  API: OpenGL v: 4.6 Mesa 22.3.6 renderer: AMD Radeon Pro WX 7100 Graphics
    (polaris10 LLVM 15.0.7 DRM 3.49 6.2.2-1-MANJARO) direct-render: Yes

You may also check your refresh rate.
Make sure you use the supplied cable or another high quality cable designed for the 240Hz refreshrate.


This what i get :

  Device-1: Intel Alder Lake-P Integrated Graphics vendor: Dell driver: i915
    v: kernel arch: Gen-12.2 ports: active: eDP-1 empty: DP-1,DP-2,HDMI-A-1
    bus-ID: 0000:00:02.0 chip-ID: 8086:46a6 class-ID: 0300
  Device-2: NVIDIA GA106M [GeForce RTX 3060 Mobile / Max-Q] vendor: Dell
    driver: nvidia v: 525.89.02 arch: Ampere bus-ID: 0000:01:00.0
    chip-ID: 10de:2520 class-ID: 0300
  Device-3: Logitech Brio 500 type: USB
    driver: hid-generic,snd-usb-audio,usbhid,uvcvideo bus-ID: 1-2.2:12
    chip-ID: 046d:0943 class-ID: 0300 serial: 2228LZ55T6R8
  Device-4: Microdia Integrated_Webcam_FHD type: USB driver: uvcvideo
    bus-ID: 1-6:4 chip-ID: 0c45:6739 class-ID: 0e02
  Display: x11 server: v: with: Xwayland v: 22.1.8
    compositor: gnome-shell v: 43.3 driver: X: loaded: modesetting,nvidia
    alternate: fbdev,nouveau,nv,vesa dri: iris gpu: i915 display-ID: :1
    screens: 1
  Screen-1: 0 s-res: 8112x3070 s-size: <missing: xdpyinfo>
  Monitor-1: DP-1-0.1 pos: right res: 3200x1800 hz: 60 dpi: 68
    size: 1190x340mm (46.85x13.39") diag: 1238mm (48.73") modes: N/A
  Monitor-2: eDP-1 pos: primary,left res: 4912x3070 hz: 60 dpi: 362
    size: 345x215mm (13.58x8.46") diag: 407mm (16") modes: N/A
  API: OpenGL v: 4.6 Mesa 22.3.5 renderer: Mesa Intel Graphics (ADL GT2)
    direct-render: Yes
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