I am trying to use ubuntu mate on lenovo y50 having 4k resolution .It seems there is no support for hidpi screens in mate . I was able to manage scaling in gnome desktop using
gsettings set org.gnome.desktop.interface scaling-factor 2
I tried the same in mate to no effect . I even tried to look into org.mate.desktop.interface for such options , but there is no such configuration available . Can anyone help me with this ?