Bug 175834

Summary:	Font artifacts in all KDE apps
Product:	[I don't know] kde	Reporter:	Alexey Chernov <4ernov>
Component:	general	Assignee:	Unassigned bugs mailing-list <unassigned-bugs>
Status:	RESOLVED UPSTREAM
Severity:	normal	CC:	andresbajotierra, mboquien
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Compiled Sources
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:
Attachments:	Screenshot displaying the fonts artifacts

Description Alexey Chernov 2008-11-22 20:11:35 UTC

Version:            (using KDE 4.1.3)
Compiler:          GCC 4.3.2 Target: x86_64-unknown-linux-gnu Configured with:  ../gcc-4.3.2/configure --prefix=/usr --libexecdir=/usr/lib --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-languages=c,c++,fortran,objc,treelang --disable-multilib --enable-c99 --enable-long-long Thread model: posix
OS:                Linux
Installed from:    Compiled From Sources

Sometimes something happens to fonts and they are displayed with big tension and glyths sometimes overlay one another (see the following screenshot).

Comment 1 Alexey Chernov 2008-11-22 20:12:16 UTC

Created attachment 28752 [details]
Screenshot displaying the fonts artifacts

Comment 2 Médéric Boquien 2008-11-22 20:39:25 UTC

Hello,

Can you reproduce the bug with another font? And what is the one you are currently using?

Thanks.

Comment 3 Alexey Chernov 2008-11-22 20:42:20 UTC

This is DejaVu Sans, 10. I will try to test it with another fonts.

Comment 4 Médéric Boquien 2008-11-22 21:41:48 UTC

DejaVu sans should be fine. I think this should be a Qt bug as it is the task of Qt to render fonts.

Comment 5 Alexey Chernov 2008-11-22 21:48:26 UTC

Well, I tried Liberation Sans just now for some time and there were no such artifact with it... But it's a little bit less of size.

Comment 6 Alexey Chernov 2008-12-11 16:54:08 UTC

It seems to be old version DejaVu bug. I've just downloaded DejaVu Fonts v. 2.27 and built it manually with new specs, and it works just fine everywhere. I'll close this. Thank you for support.

Comment 7 Alexey Chernov 2008-12-14 14:43:46 UTC

Sorry, I was too fast to close it. Unfortunately, the bug appeared again after the next start of KDE. I can't say the reason, but I noticed, that in GTK apps there's not any artifacts, but fonts are displayed there different way, with another style of antialiasing. Maybe antialiasing is the problem?

Also, it seems to be only for Cyrillic fonts and more often in Plasma apps. For example, no such problems in Dolphin or Kopete.

Comment 8 Dario Andres 2008-12-19 14:11:25 UTC

QT4 and KDE4 hinting (antialiasing) problems are already fixed in Qt4.5 . Look at bug 155547 :)