title: Emacs `Invalid font name`
body: <p>I am using GNU Emacs 24.3.1 (x86_64-suse-linux-gnu, GTK+ Version 3.6.4). I have custom font Inconsolata-g in my <code>~/.fonts</code> folder, and I have set it as Monospace font in <code>~/.config/fontconfig/fonts.conf</code>. It works well except Emacs is giving me <code>error: Invalid font name, -unknown-Inconsolata-g-normal-normal-normal-*-15-*-*-*-m-0-iso10646-1</code> at launch.</p>
  
  <p>If I change monospace font, then Emacs launch without problem, but when I do <code>M-x set-default-font</code>, and select <code>-unknown-Inconsolata-g-normal-normal-normal-*-*-*-*-*-m-0-iso10646-1</code>, I also get <code>Invalid font name: "-unknown-Inconsolata-g-normal-normal-normal-*-*-*-*-*-m-0-iso10646-1"</code>.</p>
  
  <p>How could i fix this?</p>