I discussed this issue briefly on #xubuntu-devel today. This issue does not affect the default Xubuntu session which has set a cursor size for a long time. It only affects Ubuntu 18.10 users using the plain Xfce session. (In fact, I had to create a new user to see this bug for myself in an Xubuntu 18.10 live ISO. Simply choosing "Xfce" after already logging in with "Xubuntu" was not sufficient.)
This bug will be fixed for Ubuntu 19.04 and never affected Ubuntu 18.04 LTS. ** Changed in: gtk+3.0 (Ubuntu) Status: Confirmed => Fix Committed ** Tags added: rls-cc-notfixing -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1798861 Title: Tooltips flicker constantly in GTK3 applications To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/1798861/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs