Created attachment 104230 [details] Text is partially missing in KDE 4 applications (KSnapshot), GTK applications (Thunderbird) and other non-native apps (such as LibreOffice) but not in native apps (such as Konsole) See https://bugs.launchpad.net/ubuntu/+source/kubuntu-meta/+bug/1661933 and https://bugs.launchpad.net/ubuntu/+source/thunderbird/+bug/1612917
This can be closed, as it is problem with anti-aliasing and not KDE bug. See http://askubuntu.com/questions/584922/how-do-i-fix-fonts-not-rendering-and-missing-letters for tweak (same can be achieved by going to KDE System Settings -> Appearance -> Font -> Antialiasing and changing "Use anti-aliasing from "System setting" to "Enabled" + setting subpixel rendering to "RGB"). Bug is also known in: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=760435 https://bugs.freedesktop.org/show_bug.cgi?id=88584 https://bbs.archlinux.org/viewtopic.php?id=186783