Who experiences this problem can use the following workaround as described in the source bugreport: Add to ~/.config/fonts.conf the following section before the "</fontconfig>" tag:
<match target="pattern"> <test name="family"> <string>Helvetica</string> </test> <edit name="family" mode="prepend" binding="same"> <string>NimbusSansL</string> </edit> </match> A real fix for the original problem however is likely a change of the Ubuntu trusty default fontconfig config (package: fontconfig-config) or an update to the font renderer. (Quoting https://bugs.launchpad.net/ubuntu/+source/tex-gyre/+bug/1317599/comments/8: "Ideally, renderers would notice that the glyph name they want is unavailable and look for alternate names.") -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to fontconfig in Ubuntu. https://bugs.launchpad.net/bugs/1326188 Title: Wrong PDF standard fonts are replaced when fonts package "fonts- texgyre" is installed - PDFs are rendered with missing characters Status in “fontconfig” package in Ubuntu: New Bug description: Hi, please see following bug report on freedesktop with screenshots: https://bugs.freedesktop.org/show_bug.cgi?id=79527 When fonts package "fonts-texgyre" from the "texgyre" package is installed, all PDFs containing e.g. a reference to a "Helvetica" font, which is usually not installed on Ubuntu systems, fontconfig mages a very bad choice with one of the fonts supplied in fonts-texgyre (like "TeX Gyre Heros"). The problem is, apparantly the texgyre fonts us a different naming style for some important glyphs (like greek characters contained in many mathematical documents), so that fontconfig cannot find them. See screenshots in abovementioned bugreport: ==> PDF readers only display a blank space in this case, which has potentially disastrous results (there are six orders of magnitude difference between an Ampere current and a Microampere current e.g..). There is a likely explanation also unter this bugreport: https://bugs.launchpad.net/ubuntu/+source/tex-gyre/+bug/1317599 ==> Please change the Ubuntu font configuration so that all those PDFs are displayed correctly. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fontconfig/+bug/1326188/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

