I get the message
No fonts match '9x15'
when trying to run emacs and a linux box. I messed something up a while back, but I do not know how to fix this issue. Any ideas?
With X11, the fonts are from the server, in your case Xming running on a PC, not the system executing the client application (emacs running on the Linux is a X client).
This doesn't appear to be a Linux or emacs issue.
Does emacs still run? if so run
If not, run "emacs -q" (this suppresses loading your init file) and then customize your default face.