According to upstream bug, it's a gtk 3.18 bug which Abiword triggered. An update to 3.20 fix the issue, which is the case on yakkety. To fix the bug on 16.04, we have to find the correct gtk fix (which may not be that easy).
** Also affects: gtk+3.0 (Ubuntu) Importance: Undecided Status: New ** Changed in: abiword (Ubuntu) Status: Confirmed => Invalid ** Changed in: lubuntu-artwork (Ubuntu) Status: Confirmed => Invalid ** Also affects: abiword (Ubuntu Xenial) Importance: Undecided Status: New ** Also affects: lubuntu-artwork (Ubuntu Xenial) Importance: Undecided Status: New ** Also affects: gtk+3.0 (Ubuntu Xenial) Importance: Undecided Status: New ** Changed in: lubuntu-artwork (Ubuntu Xenial) Status: New => Invalid ** Changed in: gtk+3.0 (Ubuntu) Status: New => Fix Released ** Changed in: abiword (Ubuntu Xenial) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to gtk+3.0 in Ubuntu. https://bugs.launchpad.net/bugs/1574278 Title: AbiWord text cursor starts to flicker after adding some text Status in AbiWord: Invalid Status in abiword package in Ubuntu: Invalid Status in gtk+3.0 package in Ubuntu: Fix Released Status in lubuntu-artwork package in Ubuntu: Invalid Status in abiword source package in Xenial: Invalid Status in gtk+3.0 source package in Xenial: New Status in lubuntu-artwork source package in Xenial: Invalid Bug description: After adding some text in a new document, the entire document (including gray page background, text, text cursor) starts to flicker very fast. The UI above does not flicker. This happens too on a different system in VirtualBox. (Lubuntu 16.04 i386) Workaround ========== 1. Open the Lubuntu menu. 2. Open Preferences>Customize Look and Feel 3. Change the theme to something other than Lubuntu-default or Lubuntu-dark-panel ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: abiword 3.0.1-6 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic i686 ApportVersion: 2.20.1-0ubuntu2 Architecture: i386 CurrentDesktop: LXDE Date: Sun Apr 24 16:12:14 2016 ExecutablePath: /usr/bin/abiword InstallationDate: Installed on 2016-04-22 (2 days ago) InstallationMedia: Lubuntu 15.10 "Wily Werewolf" - Release i386 (20151021) ProcEnviron: LANGUAGE=de_DE PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=de_DE.UTF-8 SHELL=/bin/bash SourcePackage: abiword UpgradeStatus: Upgraded to xenial on 2016-04-22 (2 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/abiword/+bug/1574278/+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