Looking at the upstream git log [1] the fontconfig part should be fixed since saucy.
[1] http://cgit.freedesktop.org/fontconfig/commit/?id=b561ff2016ce84eef3c81f16dfb0481be6a13f9b ** Changed in: fontconfig (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Documentation Packages, which is subscribed to ubuntu-font-family- sources in Ubuntu. https://bugs.launchpad.net/bugs/1054204 Title: Libreoffice chooses incorrect font weight Status in Fontconfig - Font Configuration Library: Fix Released Status in Ubuntu Font Family: Confirmed Status in “fontconfig” package in Ubuntu: Fix Released Status in “libreoffice” package in Ubuntu: Confirmed Status in “ubuntu-font-family-sources” package in Ubuntu: Fix Released Status in “fontconfig” source package in Quantal: Confirmed Status in “libreoffice” source package in Quantal: Confirmed Status in “ubuntu-font-family-sources” source package in Quantal: Fix Released Status in “fontconfig” source package in Raring: Triaged Status in “libreoffice” source package in Raring: Triaged Status in “ubuntu-font-family-sources” source package in Raring: Fix Released Bug description: How to fix the problem: See comments on wrong "Ubuntu Light" font family being specified in the information of Ubuntu-M.ttf. You can fix the problem manually by installing fontforge program, going to Open dialog, navigating in it to /usr/share/fonts/truetype /ubuntu-font-family/ and opening Ubuntu-M.ttf. In Element -> Font Info, you can fix the family on the first page, and then export the font with File -> Generate Fonts, selecting the type "TrueType". Save to somewhere in your home folder first, accept the warnings, then in a terminal window / command line type: sudo mv Ubuntu-M.ttf /usr/share/fonts/truetype/ubuntu-font-family sudo dpkg-reconfigure fontconfig Attached to this bug report is also a branch of the Ubuntu packaging that includes this manually modified Ubuntu-M.ttf, since the sources seem not to be editable with free tools. Original description: After installing the Ubuntu Font 0.80-0ubuntu3+console from quantal I have the added "Medium" font weight:- /usr/share/fonts/truetype/ubuntu-font-family/UbuntuMono-B.ttf /usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-RI.ttf /usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-MI.ttf /usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-LI.ttf /usr/share/fonts/truetype/ubuntu-font-family/UbuntuMono-RI.ttf /usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-M.ttf /usr/share/fonts/truetype/ubuntu-font-family/UbuntuMono-BI.ttf /usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-B.ttf /usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-L.ttf /usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-C.ttf /usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-BI.ttf /usr/share/fonts/truetype/ubuntu-font-family/UbuntuMono-R.ttf /usr/share/fonts/truetype/ubuntu-font-family/Ubuntu-R.ttf If I install this font and choose "Ubuntu Light" in LibreOffice, it actually picks the "Medium" font weight. If I remove the medium font weight files and restart LibreOffice it chooses the right weight again. It seems related to bug 744812. Screenshots show the issue. ProblemType: Bug DistroRelease: Ubuntu 12.10 Package: libreoffice-writer 1:3.6.1~rc2-1ubuntu5 ProcVersionSignature: Ubuntu 3.5.0-15.22-generic 3.5.4 Uname: Linux 3.5.0-15-generic x86_64 ApportVersion: 2.5.2-0ubuntu4 Architecture: amd64 Date: Fri Sep 21 17:34:30 2012 EcryptfsInUse: Yes InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120102) SourcePackage: libreoffice UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/fontconfig/+bug/1054204/+subscriptions -- Mailing list: https://launchpad.net/~documentation-packages Post to : documentation-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~documentation-packages More help : https://help.launchpad.net/ListHelp