LF Tip: Switching off font anti-aliasing
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original in en Guido Socher
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Font anti-aliasing is a method of making fonts more smooth and round
by adding grey dots at the edges and corners. To use anti-aliasing is unfortunately
the default setting in most of the newer linux distributions.
I hate it because those fuzzy looking letters cause headaches when I read text on the screen.
I prefer a high quality, sharp font in shells and text editors.
Here is how to turn it off for gdk based applications:
setenv GDK_USE_XFT 0
and for Qt based applications this can be done with:
setenv QT_XFT 0
KDE based Qt applications overwrite this unfortunately and you have to
use the KDE control center (see below) even if you do not run KDE.
Here is how this looks like. Left is a screen shot from
a shell window with anti-aliasing and right without.
Setting the "Font Rendering" option in the gnome-control-center to
Monochrome turns anti-aliasing also off (but not everybody uses the gnome
desktop). Under KDE you can unselect the Appearance&Themes->Fonts->Anti-Aliasing option from kcontrol.
It is possible to finetune the anti-aliasing behaviour on a per
font bases. You can e.g disable it for just the lucida fixed width font
if you are using this font in your texteditor/shell.
Edit the file /usr/X11R6/lib/X11/XftConfig:
any family == "lucida"
edit antialias = false;
To not anti-alias small font sizes you can use:
any size < 15
antialias = false;
Be aware that some distributions generate and overwrite this XftConfig file (look at
modification time of the file). Hopefully this file has then a line like
'includeif "~/.xftconfig"' in which case you can add you personal modifications
to ~/.xftconfig in your home directory.