Logiops (Linux driver) configuration example for Logitech MX Master 3. Includes gestures, smartshift, DPI. Tested on logid v0.2.2-35-g1c209ed. File location: `/etc/logid.cfg`

logid.cfg

// Logiops (Linux driver) configuration for Logitech MX Master 3.
// Includes gestures, smartshift, DPI.
// Tested on logid v0.2.2-35-g1c209ed.

// File location: /etc/logid.cfg

devices: ({
  name: "Wireless Mouse MX Master 3";

  smartshift: {
    on: true;
    threshold: 15;
  };

  hiresscroll: {
    hires: true;
    invert: false;
    target: false;
  };

  dpi: 1500; // max=4000

  buttons: (
    // Forward button
    {
      cid: 0x56;
      action = {
        type: "Gestures";
        gestures: (
          {
            direction: "None";
            mode: "OnRelease";
            action = {
              type: "Keypress";
              keys: [ "KEY_FORWARD" ];
            }
          },

          {
            direction: "Up";
            mode: "OnRelease";
            action = {
              type: "Keypress";
              keys: [ "KEY_PLAYPAUSE" ];
            }
          },

          {
            direction: "Down";
            mode: "OnRelease";
            action = {
              type: "Keypress";
              keys: [ "KEY_PLAYPAUSE" ];
            }
          },

          {
            direction: "Right";
            mode: "OnRelease";
            action = {
              type: "Keypress";
              keys: [ "KEY_NEXTSONG" ];
            }
          },

          {
            direction: "Left";
            mode: "OnRelease";
            action = {
              type: "Keypress";
              keys: [ "KEY_PREVIOUSSONG" ];
            }
          }
        );
      };
    },

    // Back button
    {
      cid: 0x53;
      action = {
        type: "Gestures";
        gestures: (
          {
            direction: "None";
            mode: "OnRelease";
            action = {
              type: "Keypress";
              keys: [ "KEY_BACK" ];
            }
          }
        );
      };
    },

    // Thumb button
    {
      cid: 0xc3;
      action = {
        type: "Gestures";
        gestures: (
          {
            direction: "None";
            mode: "OnRelease";
            action = {
              type: "Keypress";
              keys: [ "KEY_LEFTCTRL", "KEY_TAB" ];
            }
          },

          {
            direction: "Right";
            mode: "OnRelease";
            action = {
              type: "Keypress";
              keys: [ "KEY_LEFTCTRL", "KEY_PAGEDOWN" ];
            }
          },

          {
            direction: "Left";
            mode: "OnRelease";
            action = {
              type: "Keypress";
              keys: [ "KEY_LEFTCTRL", "KEY_PAGEUP" ];
            }
          }
        );
      };
    },

    // Top button
    {
      cid: 0xc4;
      action = {
        type: "Gestures";
        gestures: (
          {
            direction: "None";
            mode: "OnRelease";
            action = {
              type: "ToggleSmartShift";
            }
          },

          {
            direction: "Up";
            mode: "OnRelease";
            action = {
              type: "ChangeDPI";
              inc: 1000,
            }
          },

          {
            direction: "Down";
            mode: "OnRelease";
            action = {
              type: "ChangeDPI";
              inc: -1000,
            }
          }
        );
      };
    }
  );
});

I experienced slow/weird/buggy scrolling after updating to 22.04 from a pretty old version of Ubuntu/GNOME Shell, so I updated the gist.

Notes for what I did:

• sudoedit /etc/logid.cfg
• set hires: true
• sudo systemctl restart logid to use the changes

Scrolling was fine after.