According to the bug report for Libertinus <https://github.com/alif- type/libertinus/issues/300#issuecomment-593409073>, FreeType has accepted this as a bug and released a fix. I updated the bug links accordingly.
** Also affects: freetype (Ubuntu) Importance: Undecided Status: New ** Bug watch added: Non-GNU Savannah Bug Tracker #55414 http://savannah.nongnu.org/bugs/?55414 ** Also affects: freetype via http://savannah.nongnu.org/bugs/?55414 Importance: Unknown Status: Unknown ** Bug watch added: github.com/alif-type/libertinus/issues #300 https://github.com/alif-type/libertinus/issues/300 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to freetype in Ubuntu. https://bugs.launchpad.net/bugs/1865387 Title: Linux Biolinum O italic lowercase m not displayed by poppler Status in FreeType: Unknown Status in Linux Libertine: New Status in fonts-linuxlibertine package in Ubuntu: New Status in freetype package in Ubuntu: New Bug description: STEPS TO REPRODUCE: Create a PDF document with the character U+006D LATIN SMALL LETTER M in Linux Biolinum O, for example with libreoffice. Expected behavior: The 'm' is displayed Actual behavior: The 'm' is not displayed (but does take up space) This issue is discussed in this thread in the poppler forum, which leads me to think it is a problem with the font: https://lists.nongnu.org/archive/html/freetype- devel/2018-12/msg00063.html ProblemType: Bug DistroRelease: Ubuntu 19.04 Package: fonts-linuxlibertine 5.3.0-4 ProcVersionSignature: Ubuntu 5.0.0-38.41-generic 5.0.21 Uname: Linux 5.0.0-38-generic x86_64 ApportVersion: 2.20.10-0ubuntu27.3 Architecture: amd64 CurrentDesktop: KDE Date: Sun Mar 1 17:13:17 2020 Dependencies: PackageArchitecture: all SourcePackage: fonts-linuxlibertine UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/freetype/+bug/1865387/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp