Unity 5.6 got released on March 12th, and at least for me it fixed (and was also supposed to fix) the annoying unwanted popping up. I also cannot reproduce this anymore by eg. rapidly pressing alt+f / alt+b in terminal. Same for M-x in emacs.
** Changed in: ayatana-design Status: Triaged => Fix Released ** Changed in: unity (Ubuntu) Status: Confirmed => Fix Released ** Changed in: unity Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to unity in Ubuntu. Matching subscriptions: dp-unity https://bugs.launchpad.net/bugs/934610 Title: HUD - Typing a key combination (e.g. Alt-x) fast enough triggers the HUD Status in Ayatana Design: Fix Released Status in Unity: Fix Released Status in “unity” package in Ubuntu: Fix Released Bug description: Typing a key combination fast enough brings up the HUD. The problem is especially evident in emacs, where M-x is a very fast key combination to type, and will invariably bring up the HUD. But even outsideof emacs, typing Alt-f or Alt-b on the shell will often bring up the HUD too. To manage notifications about this bug go to: https://bugs.launchpad.net/ayatana-design/+bug/934610/+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