[Bug 268668] x11-fonts/fontconfig does not honor lcdfilter setting
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Date: Sat, 31 Dec 2022 11:26:13 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=268668 Bug ID: 268668 Summary: x11-fonts/fontconfig does not honor lcdfilter setting Product: Ports & Packages Version: Latest Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: Individual Port(s) Assignee: desktop@FreeBSD.org Reporter: bsdpr@phoe.frmug.org Assignee: desktop@FreeBSD.org Flags: maintainer-feedback?(desktop@FreeBSD.org) Created attachment 239148 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=239148&action=edit Screenshot of the test program runing on the affected host I recently did a full system upgrade that brought fontconfig 2.14.0 in, since then I observed that my reading ability is impeded. I rooted this to fontconfig which no longer honor lcdfilter settings in fonts.conf. I can't remember when I disabled LCD filtering to improve text display, for maybe ten years I have the followinf lines in ~/.config/fontconfig/fonts.conf file: <!-- Disable sub-pixel rendering but we still use antialias --> <match target="font"> <edit mode="assign" name="rgba"> <const>none</const> </edit> <edit mode="assign" name="lcdfilter"> <const>lcdnone</const> </edit> <edit mode="assign" name="antialias"> <bool>true</bool> </edit> </match> <!-- Enable hinting when provided by the font --> <match target="font"> <edit mode="assign" name="hinting"> <bool>true</bool> </edit> <edit mode="assign" name="hintstyle"> <const>hintfull</const> </edit> <edit mode="assign" name="autohint"> <bool>true</bool> </edit> </match> I initially thought this might be caused by toolkits forcing lcdfilering on so I wrote a small test program using only xlib and xft. Despite the settings shown above, even using this basic display interface the characters rendered through xft are lcdfiltered and came to the conclusion that the culprit is either fontconfig or xft (the former is more probable). To support my claim, I join the test program and two screenshots, made on the same display server, of two instances of the same test client running on two different hosts. Please note that the unaffected host is remote. -- You are receiving this mail because: You are the assignee for the bug.