It seems that libfreetype.so.6.6.2 of 3.7rc have problem for chinese font.

[aswjh]

libfreetype.so.6.4 of tc3.6 is better than libfreetype.so.6.6.2  of 3.7rc3  for chinese font..
this is the picture:

[curaga]

If the font is bad quality, you can disable antialiasing for that font:
https://wiki.archlinux.org/index.php/Font_Configuration

It could also be the subpixel or hinting setting.

~/.fonts.conf

<?xml version="1.0"?>
<!DOCTYPE fontconfig SYSTEM "fonts.dtd">
<fontconfig>

  <!-- settings go here -->
<match target="font">
    <edit name="antialias" mode="assign">
      <bool>false</bool>
    </edit>
  </match>

</fontconfig>

[aswjh]

 I guess the reason is that 3.7rc use libfreetype.so.6.6.2.
 I try to ln libfreetype.so.6.4 instead of libfreetype.so.6.6.2,and its ok.

[Juanito]

I just tried with microcore-3.7rc2 and Xorg-7.5 and deleted libfreetype.so.6.4 so it could not be used - things work fine..

[curaga]

@Juanito - from the pic I gather the issue is slightly fuzzier look. Badly hinted fonts can cause that, it's a sad fact that fonts from Microsoft and Apple tend to be the best quality...

[hiro]

it's a sad fact that fonts from Microsoft and Apple tend to be the best quality...

They are properly hinted and thus great if you don't want to use anti-aliasing.
But I heard others say free fonts with antialiasing+autohinting look better on their screens.

I'd like to understand the fontconfig config so that I could experiment some more...