I have enabled xenial-proposed and installed xmir. I can confirm this bug is fixed.
** Tags removed: verification-needed ** Tags added: verification-done -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1590553 Title: Xmir -rootless: Buttons are randomly unclickable (popups vanish instantly) Status in xorg-server package in Ubuntu: Fix Released Status in xorg-server source package in Xenial: Fix Committed Bug description: Xmir -rootless: Buttons are randomly unclickable I've noticed this in LibreOffice Impress and Chromium browser. Sometimes when clicking buttons, the button just flickers and does nothing. Sometimes it also involves a popup menu flickering and out. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1590553/+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