Comment 7 for bug 1575555

@Dhoulmagus In your case maybe you can try to replace the font file installed by fonts-noto-cjk directly as a temporary measure. According to http://askubuntu.com/a/762910/391188 and http://takeson.blogspot.com/2016/04/noto-sans-cjk-thin-font-issue.html this method should work, though I haven't tried it myself.