I have the same problem on a fresh install of Ubuntu 18.04 when connected to an external 4k DELL monitor. Changing cursor-size in dconf-editor is not reflected in browsers and some other apps (PyCharm, slack, drawing apps, .. ), the pointer is tiny.
I have the same problem on a fresh install of Ubuntu 18.04 when connected to an external 4k DELL monitor. Changing cursor-size in dconf-editor is not reflected in browsers and some other apps (PyCharm, slack, drawing apps, .. ), the pointer is tiny.