This has turned out to be more tedious than I thought. I did the usual looking up tools to use, and found they use ddci, like ddcutil and ddccontrol, but they’re very slow. Before setting them up, KDE’s brightness slider did software brightness, now it does hardware brightness but now takes a whole moment with each brightness, I can’t smoothly slide it back and forth like I can on laptops. I have a Dell G3233Q connected via USB For USB ports and DisplayPort.

  • pewpew@feddit.it
    3·
    8 days ago

    I have the same question, for me the KDE slider works like 1/6 of the time. Do you have an Nvidia GPU?

  • boredsquirrel@slrpnk.net
    2·
    8 days ago

    brightnessctl is useful, can do percentage-wise. With some shell math you can also make buttons to increase and decrease it

      • boredsquirrel@slrpnk.net
        1·
        1 day ago

        It does? I use it on KDE Wayland

        Extra checked the name of the thing

        I use it to change brightness via KDE Connect.

        • minimum@mander.xyz
          1·
          16 hours ago

          Huh. I should check again

          It doesn’t work for me on SwayWM, maybe KDE does something else under the hood?

          Edit: lol Sorry, I mistook xrandr for brightnessctl. (I had aliased xrandr brightness change commands to “brightness” in my shell)

  • Zamundaaa@discuss.tchncs.deEnglish
    2·
    7 days ago

    Ddc/ci brightness changes are very often animated by the display firmware, so doing it fast is rarely possible.

    You can however disable ddc/ci in the display settings if you’d rather have software brightness.