Just checked on my ubuntu gnome-shell session, with gedit & a short text file: does not see 'flashing' issue with a non scrollbar little text. My system has 'proposed' archive enabled and use intel builtin video.
-- 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/1751417 Title: gtk3.22 makes gedit & pluma screen flash for short text only Status in gtk+3.0 package in Ubuntu: New Bug description: Environment: Ubuntu 18.04 development branch; GTK-3 version: 3.22; For almost all gtk3-based text editor, such as gedit, pluma, mousepad. There is textview flashing issue when the textview doesn't have its side-scrollbar. Typically, short text in textview can make this condition satisified. 1) Editor textview flashing problem only happens in OS physical hosts, and doesn't happen when editors run inside Virtualbox. 2) Editor textview flashing problem doesn't happen in Ubuntu 16.04 which is of lower gtk3 version; 3) If text document is long to generate either side of scrollbar for the editor textview, then the textview is no longer flashing. More to see: https://github.com/mate-desktop/pluma/issues/282 Still, I just ensure that it is not a pluma issue but happens in all gtk3-based text editor including gedit. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: libgtk-3-0 3.22.28-1ubuntu1 ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3 Uname: Linux 4.15.0-10-generic x86_64 ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 CurrentDesktop: MATE Date: Sat Feb 24 14:32:35 2018 SourcePackage: gtk+3.0 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/1751417/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp