[Bug 591556] New: Font artifact with number 4

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Summary: Font artifact with number 4

https://bugzilla.redhat.com/show_bug.cgi?id=591556

Summary: Font artifact with number 4
           Product: Fedora
           Version: rawhide
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: medium
          Priority: low
         Component: liberation-fonts
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
         QAContact: [e-mail]
                CC: [e-mail], [e-mail],
                    [e-mail],
                    [e-mail]
    Classification: Fedora
    Target Release: ---

Description of problem:

(Quoted from [e-mail])

In the Russian «б», the ascender is blurry.

http://shnurapet.fedorapeople.org/rus-b.png

freetype-freeworld-debuginfo-2.3.11-1.fc12.x86_64
freetype-2.3.11-3.fc12.x86_64
freetype-freeworld-2.3.11-1.fc12.x86_64
freetype-devel-2.3.11-3.fc12.x86_64
freetype-debuginfo-2.3.11-3.fc12.x86_64

$ ls /etc/yum.repos.d/
fedora-rawhide.repo          rpmfusion-free.repo
fedora.repo                  rpmfusion-free-updates.repo
fedora-updates.repo          rpmfusion-free-updates-testing.repo
fedora-updates-testing.repo  rpmfusion-nonfree-rawhide.repo
infinality.repo              rpmfusion-nonfree.repo
remi.repo                    rpmfusion-nonfree-updates.repo
rpmfusion-free-rawhide.repo  rpmfusion-nonfree-updates-testing.repo

$ cat /etc/yum.repos.d/infinality.repo 
[infinality]
name=Infinality
baseurl=http://www.infinality.net/fedora/linux/$releasever/$basearch/
enabled=1
gpgcheck=0

[infinality-noarch]
name=Infinality - noarch
baseurl=http://www.infinality.net/fedora/linux/$releasever/noarch/
enabled=1
gpgcheck=0

$ cat ~/.fonts.conf 
<?xml version='1.0'?>
<!DOCTYPE fontconfig SYSTEM 'fonts.dtd'>
<fontconfig>
    <match target="font" >
        <edit mode="assign" name="rgba" >
            <const>rgb</const>
        </edit>
        <edit mode="assign" name="hinting" >
            <bool>true</bool>
        </edit>
        <edit mode="assign" name="autohint" >
            <bool>true</bool>
        </edit>
        <edit mode="assign" name="antialias" >
            <bool>true</bool>
        </edit>
        <edit mode="assign" name="hintstyle" >
            <const>hintfull</const>
        </edit>
        <edit name="lcdfilter" mode="assign">
            <const>lcddefault</const>
        </edit>
    </match>
</fontconfig>

Size 8. I set 98 dpi for proper kerning.

http://shnurapet.fedorapeople.org/last-line.png
(It's in the center of the last line.)

[Bug 591556] Blur on Russian «б»

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Caius 'kaio' Chance  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |i18n
            Summary|Font artifact with number 4 |Blur on Russian «б»
              Alias|                            |liberation-fonts

[Bug 591556] Blur on Russian «б»

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Caius 'kaio' Chance  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
              Alias|liberation-fonts            |

[Bug 591556] Blur on Russian «б»

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Misha Shnurapet  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]

--- Comment #1 from Misha Shnurapet  2010-05-12 11:01:40 EDT ---
Thanks, Caius.

[Bug 591556] Blur on Russian «б»

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Fedora Admin XMLRPC Client  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|[e-mail]                 |[e-mail]

--- Comment #2 from Fedora Admin XMLRPC Client  2010-07-14 20:22:05 EDT ---
This package has changed ownership in the Fedora Package Database.  Reassigning
to the new owner of this component.

[Bug 591556] Blur on Russian «б»

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Pravin Satpute  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
               Flag|                            |needinfo?([e-mail])

--- Comment #3 from Pravin Satpute  2010-07-15 01:46:31 EDT ---
Caius, 
is this fixed?

do let me know so i can do the remaining work

[Bug 591556] Blur on Russian «б»

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Caius Chance  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
               Flag|needinfo?([e-mail])      |

--- Comment #4 from Caius Chance  2010-07-15 02:15:27 EDT ---
This one was never touched as I have never had time on this. I have just
triaged and confirmed reproducible only.

[Bug 591556] Blur on Russian «б»

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--- Comment #5 from Misha Shnurapet  2010-07-15 06:48:20 EDT ---
liberation-sans-fonts-1.05.1.20090721-2.fc12.noarch
liberation-mono-fonts-1.05.1.20090721-2.fc12.noarch
liberation-fonts-common-1.05.1.20090721-2.fc12.noarch
liberation-serif-fonts-1.05.1.20090721-2.fc12.noarch

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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Pravin Satpute  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Blur on Russian «б»         |Blur on Russian «б» and
                   |                            |number '8' has some wart on
                   |                            |its face.

--- Comment #6 from Pravin Satpute  2010-07-15 07:19:18 EDT ---
The number «8» glyph has some kind of a wart on its face.

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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--- Comment #7 from Pravin Satpute  2010-07-15 07:21:37 EDT ---
*** Bug 614819 has been marked as a duplicate of this bug. ***

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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--- Comment #8 from Pravin Satpute  2010-07-15 07:22:43 EDT ---
Created an attachment (id=432043)
 --> (https://bugzilla.redhat.com/attachment.cgi?id=432043)
describing problem of hinting for 8 digit

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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--- Comment #10 from Pravin Satpute  2010-10-13 02:47:43 EDT ---
can we get steps to reproduce this bug?

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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--- Comment #11 from Misha Shnurapet  2010-10-13 03:11:54 EDT ---
These are contained in the bug report, but to make it clear:

1. Install the font rendering libraries with the patented technologies enabled
(using the repository from infinality.net, config provided)
2. Use the .fonts.conf provided;
2. Install Liberation fonts and set them as the system default typeface, set
its size 8 points.

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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--- Comment #12 from Pravin Satpute  2010-10-13 03:22:36 EDT ---
thanks, i will test and see if anything improved on f14

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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Akira TAGOH  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[e-mail]
               Flag|                            |needinfo?(psatpute@redhat.c
                   |                            |om)

--- Comment #13 from Akira TAGOH  2011-12-05 06:15:39 EST ---
Pravin, any updates on this?

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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Pravin Satpute  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
               Flag|needinfo?(psatpute@redhat.c |
                   |om)                         |

--- Comment #14 from Pravin Satpute  2011-12-07 05:38:47 EST ---
not yet. next month i will go through this bug.

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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Pravin Satpute  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|14                          |16

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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--- Comment #15 from Pravin Satpute  2011-12-19 11:15:49 EST ---
Hi Misha and Caius

while digging on it, i found that when we enable auto-hinting at 8pt size
this problem is happening.

$ftstring  -r 96 -m 6б8 ppem 200
/usr/share/fonts/liberation/LiberationSans-Regular.ttf

press up arrow and make point size 8pt, press f for autohint on-off, observ
behaviour

ftstring is part of freetype-demos package

from Fedora 15 onwards we are using bytecode interpreter hinting, so i think
problem should not occur now.

can you check this once?

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=591556

Pravin Satpute  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |MODIFIED
              Flags|                            |needinfo?(zayzayats@yandex.
                   |                            |ru)

--- Comment #16 from Pravin Satpute  ---
can you test this with the latest version of liberation fonts 2.00.1?

to me again this happens only when we enable auto-hinting but we are not using
it for liberation font in Fedora

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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https://bugzilla.redhat.com/show_bug.cgi?id=591556

--- Comment #17 from Pravin Satpute  ---
ping

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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Product: Fedora
https://bugzilla.redhat.com/show_bug.cgi?id=591556

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[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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Pravin Satpute  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|MODIFIED                    |ASSIGNED
            Version|16                          |18

--- Comment #19 from Pravin Satpute  ---
hmm, since we switched backed to liberation 1.0 this again need some work.

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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Pravin Satpute  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
            Version|18                          |20

[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |CLOSED
         Resolution|---                         |EOL
        Last Closed|                            |2015-06-29 20:33:18

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[Bug 591556]=?UTF-8?Q?=20Blur=20on=20Russian=20=C2=AB=D0=B1=C2=BB=20and=20number=20?='8' has some wart on its face.

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Pravin Satpute  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|CLOSED                      |ASSIGNED
            Version|20                          |23
         Resolution|EOL                         |---
           Keywords|                            |Reopened

[Bug 591556] Blur on Russian «б =?UTF-8?Q?=C2=BB=20and=20number=20?='8' has some wart on its face.

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Although we aim to fix as many bugs as possible during every release's 
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[Bug 591556] Blur on Russian «б =?UTF-8?Q?=C2=BB=20and=20number=20?='8' has some wart on its face.

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=591556

Pravin Satpute  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|needinfo?(zayzayats@yandex. |
                   |ru)                         |

--- Comment #24 from Pravin Satpute  ---
Created attachment 1231627
  --> https://bugzilla.redhat.com/attachment.cgi?id=1231627&action=edit
F25 working fine at font size 8 in gedit.

Working for me.

[Bug 591556] Blur on Russian «б =?UTF-8?Q?=C2=BB=20and=20number=20?='8' has some wart on its face.

[Red Hat Bugzilla]

https://bugzilla.redhat.com/show_bug.cgi?id=591556

Pravin Satpute  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |CLOSED
         Resolution|---                         |CURRENTRELEASE
        Last Closed|2015-06-29 20:33:18         |2016-12-14 06:54:42