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Summary: CJK text regression (w/ screenshots)
https://bugzilla.redhat.com/show_bug.cgi?id=540061
Summary: CJK text regression (w/ screenshots) Product: Fedora Version: 12 Platform: All OS/Version: Linux Status: NEW Severity: medium Priority: low Component: fontconfig AssignedTo: besfahbo@redhat.com ReportedBy: frigoris.ma@gmail.com QAContact: extras-qa@fedoraproject.org CC: besfahbo@redhat.com, fedora-fonts-bugs-list@redhat.com Classification: Fedora
Created an attachment (id=372855) --> (https://bugzilla.redhat.com/attachment.cgi?id=372855) Screenshot of XFCE4 input method setting tool. Note the coarse text
Description of problem: I upgraded to Fedora 12 and to my surprise, some Chinese text that used to be displayed correctly now appears to be rendered ugly and broken.
Examples can be found in the attached screenshots. All shots are taken on the F12 system. Unfortunately I didn't take shots on the previous, working system (because it worked as expected) so there's no comparison.
On my current F12 install the font packages are almost the same as the previous F11 system. There are no additional fonts installed.
The installed CJK fonts are:
cjkuni-fonts-ghostscript-0.2.20080216.1-29.fc12.noarch cjkuni-ukai-fonts-0.2.20080216.1-29.fc12.noarch cjkuni-uming-fonts-0.2.20080216.1-29.fc12.noarch
wqy-bitmap-fonts-0.9.9-11.fc12.noarch wqy-unibit-fonts-1.1.0-7.fc12.noarch wqy-zenhei-fonts-0.8.38-3.fc12.noarch
xorg-x11-fonts-misc-7.2-9.fc12.noarch
I'm not sure whether this bug should be reported against this package or any of the font packages. I really don't know. I just guessed this could possibly be a fontconfig problem, since I didn't change the fonts.
The Appearance setting is also inherited from the previous install. The default font used is "DejaVu Sans 9". In F11 it used to do the right thing with this setting (displaying Western text in DejaVu Sans and render CJK text beautifully). I didn't change anything.
Also, subpixel antialiasing seems to have stopped working for CJK text too.
Version-Release number of selected component (if applicable): fontconfig-2.7.3-1.fc12.i686
Additional info: I guess the cause of this issue is complex, but I have to choose a package to report the bug against ;) If you feel it's necessary, please also inform the font maintainers of this issue.
Thanks.
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https://bugzilla.redhat.com/show_bug.cgi?id=540061
--- Comment #1 from Cong Ma frigoris.ma@gmail.com 2009-11-21 23:08:37 EDT --- Created an attachment (id=372857) --> (https://bugzilla.redhat.com/attachment.cgi?id=372857) F12 YUMEX screenshot
The rendered text in the red circle is the most offending. Also the larger characters doesn't appear quite right even with subpixel on.
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https://bugzilla.redhat.com/show_bug.cgi?id=540061
--- Comment #2 from Cong Ma frigoris.ma@gmail.com 2009-11-21 23:10:16 EDT --- Created an attachment (id=372859) --> (https://bugzilla.redhat.com/attachment.cgi?id=372859) F12 GIMP screenshot
The small characters displayed in this GIMP sidepanel appears utterly illegible.
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Jens Petersen petersen@redhat.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |petersen@redhat.com
--- Comment #3 from Jens Petersen petersen@redhat.com 2010-03-03 04:24:12 EST --- Can you reproduce in gucharmap? And identify which font has the problem?
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Jens Petersen petersen@redhat.com changed:
What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|besfahbo@redhat.com |pwu@redhat.com
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Qianqian Fang fangqq@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |fangqq@gmail.com
--- Comment #4 from Qianqian Fang fangqq@gmail.com 2010-03-04 11:00:43 EST --- try to search "antialias" in the conf.d folder. UMing should set 10px (or 11px) as the smallest font size for antialias=false.
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Qianqian Fang fangqq@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |cchance@redhat.com, | |phuang@redhat.com Component|fontconfig |cjkuni-fonts AssignedTo|pwu@redhat.com |cchance@redhat.com
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--- Comment #5 from Cong Ma frigoris.ma@gmail.com 2010-03-05 01:07:25 EST --- (In reply to comment #4)
try to search "antialias" in the conf.d folder. UMing should set 10px (or 11px) as the smallest font size for antialias=false.
Thanks for the comment. Lowering the threshold value seems to have fixed the problem for me.
Any reason for the particular choice of 10px or 11px? The GIMP seems to require a smaller value to display the small characters properly.
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Jens Petersen petersen@redhat.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED
--- Comment #6 from Jens Petersen petersen@redhat.com 2010-03-05 03:17:44 EST --- This should be fixed in F13 already btw since I dropped the bitmap .conf there.
Perhaps you could test the current rawhide/f13 package is ok for you?
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Caius Chance me@kaio.net changed:
What |Removed |Added ---------------------------------------------------------------------------- Keywords| |i18n AssignedTo|me@kaio.net |extras-orphan@fedoraproject | |.org
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Fedora Admin XMLRPC Client fedora-admin-xmlrpc@redhat.com changed:
What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|extras-orphan@fedoraproject |pwu@redhat.com |.org |
--- Comment #7 from Fedora Admin XMLRPC Client fedora-admin-xmlrpc@redhat.com 2010-07-14 20:31:12 EDT --- This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
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James Ni jni@redhat.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |CLOSED CC| |jni@redhat.com Resolution| |CURRENTRELEASE Last Closed| |2010-09-28 23:21:09
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--- Comment #8 from James Ni jni@redhat.com 2010-09-28 23:24:38 EDT --- I have test yumex, gimp and imchooser on my F13 machine, it is ok for me. The problem have fixed in F13.
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