Ubuntu
fontconfig package

kochi fonts poor subpixel rendering

Bug #159845 reported by Plareplane
6
Affects Status Importance Assigned to Milestone
fontconfig (Ubuntu)
Invalid
Undecided
Unassigned

Bug Description

Problem:
 - Kochi Gothic and Kochi Mincho fonts render poorly (sometimes missing entire glyphs) when subpixel smoothing is enabled.
- Kochi Gothic and Kochi Mincho are high up on the default fonts preference list (this may be locale dependent, I'm not sure), so CJK websites will render with missing glyphs.

Details
- Stock Gutsy install from scratch
- Autohinter off as per default (problem is alleviated with autohinter on, but autohinter makes fonts look ugly IMO)
- en_US.UTF8 locale

Steps to reproduce
- Select Kochi Gothic font (also affects Kochi Mincho)
- Toggle subpixel smoothing on/off
- Read/write CJK text

I'm under the impression that subpixel smoothing has been changed in Gutsy (compared to Feisty). I do not recall if this bug affected Feisty.

See original description
Revision history for this message
Plareplane (plareplane) wrote :
Revision history for this message
Plareplane (plareplane) wrote :
Revision history for this message
Plareplane (plareplane) wrote :
description: updated
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Tobias Wolf (towolf) wrote :

This is a bug. With Fontconfig likely. FreeType is not good at authinting CJK text. This is why it forces embedded hints normally. This doesn't happen with subpixel, but it should.

Revision history for this message
Daniel T Chen (crimsun) wrote :

Is this symptom still reproducible in 8.10?

Changed in fontconfig:
status: New → Incomplete
Revision history for this message
Plareplane (plareplane) wrote : Re: [Bug 159845] Re: kochi fonts poor subpixel rendering

I can't reproduce it anymore.

On Tue, Nov 11, 2008 at 6:00 PM, Daniel T Chen <email address hidden> wrote:
> Is this symptom still reproducible in 8.10?
>
> ** Changed in: fontconfig (Ubuntu)
> Status: New => Incomplete
>
> --
> kochi fonts poor subpixel rendering
> https://bugs.launchpad.net/bugs/159845
> You received this bug notification because you are a direct subscriber
> of the bug.
>

Revision history for this message
Michael Nagel (nailor) wrote :

closing, seems to be fixed

Changed in fontconfig:
status: Incomplete → Invalid
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