Through amdgpu_top several modes are available, with 1440x3440@159.96 being the preferred

however after turning on/off the display, it reverts to 144hz

how can I make 160hz the default ? kde settings shows “A new output has been added. Settings have been reloaded” when this happens; and the previous 160hz is saved “for any display arrangement”

radeon vega cezanne wayland kde

  • SteveTech@programming.devEnglish
    4·
    9 months ago

    I’ve had a similar issue with a monitor not properly supporting VRR, I ended up dumping the EDID and forcing Linux to use that instead of the monitor’s.

  • yo_scottie_oh@lemmy.mlEnglish
    1·
    9 months ago

    Have you double checked that the monitor itself has native refresh rate of 160, not 144? Otherwise I’m stumped.

    • shadowintheday2@lemmy.worldOPEnglish
      2·
      9 months ago

      Yeah, it’s advertised as 160hz and even amdgpu_top (which uses xrandr or something like it) says 159.96hz is the first preferred mode, the second being 100hz

      I had this problem before with a Nvidia card which reset to 144hz after an update and I could never enable it again. However it’s a mystery as to why it boots up at 160hz in systemd-boot console, and goes back to 144hz when entering KDE or turning the display off

      • yo_scottie_oh@lemmy.mlEnglish
        2·
        9 months ago

        Hmm…maybe test what it does when you boot into live on USB or a different distro altogether, just to isolate whether it’s specific to this distro/configuration or something to do with your hardware?