This bug was fixed in the package fontconfig - 2.12.6-0ubuntu2 --------------- fontconfig (2.12.6-0ubuntu2) bionic; urgency=medium
* Upload proposed patch from upstream bug #103652. If the fontconfig cache was built on a system that has nanosecond timestamps and then later transplanted to one that doesn't - for example by mksquashfs as part of a live CD build - we consider the cache invalid and rebuild it during the boot process. Depending on the fonts involved, this can take a significant amount of time and potentially cause knock-on timeouts. The approach in this patch is to ignore the nanosecond portion of the cache's value if we get 0 when stat()ing the referenced directory, meaning it is considered fresh if the rest of the timestamp matches. (LP: #1749546) -- Iain Lane <i...@orangesquash.org.uk> Thu, 05 Apr 2018 17:13:52 +0100 ** Changed in: fontconfig (Ubuntu Bionic) Status: In Progress => Fix Released -- 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/1749546 Title: Booting a live session is slow - fontconfig regenerates its font cache Status in Fontconfig: Confirmed Status in fontconfig package in Ubuntu: Fix Released Status in fontconfig source package in Bionic: Fix Released Bug description: On Bionic Ubuntu Desktop booting to a live session is slow. It takes roughly 2 min on my test machine to boot from the "Try or Install Ubuntu" boot menu to a usable session. It also takes 1 minute to logout and 17s to log in again. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: casper 1.388 ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13 Uname: Linux 4.13.0-32-generic x86_64 ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 CasperVersion: 1.388 CurrentDesktop: ubuntu:GNOME Date: Wed Feb 14 16:43:19 2018 LiveMediaBuild: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180214) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C.UTF-8 SHELL=/bin/bash SourcePackage: casper UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/fontconfig/+bug/1749546/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp