This happens on Ubuntu 14.04 too with keyboard configured to English US. No other mappings.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1237121 Title: Keyboard: cannot bind "Alt L" to "Key to show the HUD" => Disabled Status in “gnome-control-center” package in Ubuntu: Confirmed Bug description: When clicking on "Key to show the HUD" in the Keyboard's Shortcuts settings, I cannot set the default itself: 1. Pressing the left Alt key results in the shortcut to get disabled (it says "Disabled" then) 2. There's no possibility to cancel the editing 3. There's no possibility to reset the value to its defaul WORKAROUND: use ccsm and (re-)configure the shortcut in the Ubuntu Unity Plugin. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: gnome-control-center 1:3.6.3-0ubuntu43 ProcVersionSignature: Ubuntu 3.11.0-11.17-generic 3.11.3 Uname: Linux 3.11.0-11-generic x86_64 ApportVersion: 2.12.5-0ubuntu1 Architecture: amd64 Date: Wed Oct 9 00:47:05 2013 InstallationDate: Installed on 2012-05-28 (498 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) MarkForUpload: True SourcePackage: gnome-control-center UpgradeStatus: Upgraded to saucy on 2013-10-08 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1237121/+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