Keyboard: cannot bind "Alt L" to "Key to show the HUD" => Disabled

[Daniel Hahler]

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)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sebastien Bacher (seb128)]

Thank you for your bug report. What keyboard layout do you use? Changing to alt works fine here

[Leonid Evdokimov (darkk)]

I suffer from same bug. I use two layouts configured via XKB. I reverted to XKB due to bug in iBus/layout-indicator/smthng-else making layout switching unusable #1218322. Command-line to configure the layout is:
$ setxkbmap -layout us,ru -option grp:caps_toggle,grp_led:scroll,compose:menu

I'm sure original reporter has different settings :-)

[Leonid Evdokimov (darkk)]

Also some key combinations can be set in control center, but do not work properly.
I can set Alt+Multikey (Alt + menu), but HUD is not activated with this combination. On the other hand Alt-Z works fine.

[Daniel Hahler (blueyed)]

@seb128
I am using the German keyboad layout (de, "nodeadkey").

[Silviu C. (silviucc)]

This happens on Ubuntu 14.04 too with keyboard configured to English US. No other mappings.

[klingel (klingel)]

I'm affected and was able to reset my default "Alt L" binding via ccsm: Ubuntu Unity Plugin: General: Key to show the HUD when tapped:

[mong (homer941)]

I'm affected as wll and wasnt able to fix the problem by myself.