Many fonts appear too big because for some reason my DPI is set to 120x120, instead of 96x96. Although I can set the DPI lower within XFCE using their own manager the high DPI is still apparent when using Emacs and some other apps.
I've tried editing /etc/X11/xorg.conf like some threads have said but there is no "monitor" section so I tried adding that.
I basically put something like this into my xorg.conf
Identifier "Generic Monitor"
Horizsync 28 - 64
Vertrefresh 43 - 60
DisplaySize 381 238.125
But xdpyinfo still reports 120x120 DPI
What am I doing wrong? Even /etc/X11/Xresources has the line