[Bug 708525] hinting turned off even for large fonts

bugzilla at redhat.com bugzilla at redhat.com
Sun Dec 2 20:26:13 UTC 2012


Product: Fedora
https://bugzilla.redhat.com/show_bug.cgi?id=708525

Kamil Páral <kparal at redhat.com> changed:

           What    |Removed                     |Added
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                 CC|                            |kparal at redhat.com
              Flags|                            |needinfo?(tagoh at redhat.com)

--- Comment #20 from Kamil Páral <kparal at redhat.com> ---
Akira, what is the status of this? Is it enabled by default in Fedora 18?

I have just upgraded from Fedora 17 to Fedora 18 Beta and I noticed _awful_
rendering of some fonts in Firefox. It happens just for some pages. Wikipedia
is OK. But Google+/Google Reader etc look terrible. I have found out they ask
for Arial, which is translated to Liberation Sans.

I have seen the feature page:
https://fedoraproject.org/wiki/Features/FontconfigEnableAutohinting
It doesn't say how to find out whether autohinting is on or off and how to
change it.

In my /etc/fonts/conf.d/ there is no symlink for 10-autohint.conf, which
indicates it could be off. But then I saw the pictures you rendered and that's
exactly the problem I see. Look at this:
http://tagoh.fedorapeople.org/tmp/hints/liberationsans-hinting.png
Everything is sharp and readable here. Then look at this:
http://tagoh.fedorapeople.org/tmp/hints/liberationsans-autohinting.png
This is blurry and unreadable. Compare word "jumps" in sizes 15-17, it's blurry
as hell with autohint. Reading web pages with this font puts a lot of strain on
my eyes.

How can I turn it off and verify whether this is the source of the problems or
something else?

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