Shortcuts bug ( When press the "Ctrl + Alt", window Minimized )

[Seyyed Muhammed Sadegh Salehi]

When I press the Ctrl+Alt, The window minimized! I changed the shortcut key from "Ctrl+Alt+0" to "Shift+Alt+g" and then, I deal with maximize behavior when "Ctrl+Alt" pressed. I try with this command :
$ gsettings reset-recursively org.gnome.desktop.wm.keybindings
But nothing has been changed.
The attached file is the output of following coammand :
$ gsettings list-recursively | grep org.gnome.desktop.wm.keybindings 1>/tmp/Seveas
The filename inspired from "Seveas" nickname in the #ubuntu IRC channel, Since He/She helped me to overcome this problem :)

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: gsettings-desktop-schemas 3.10.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux 3.13.0-39-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Dec 11 22:52:05 2014
InstallationDate: Installed on 2014-10-23 (49 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
PackageArchitecture: all
SourcePackage: gsettings-desktop-schemas
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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

[TomasHnyk (sup)]

Seems to be like this issue: http://ubuntuforums.org/showthread.php?t=2155314 and I am also experiencing this. Only it happens only sometimes and a reboot fixes it.

[Salehi (salehi)]

The reboot doesn't solve it to me, I solve it by removing config files in home directory, in other words, I do this:

$ ls -a | egrep -e '^\.' | xargs -i{} sudo rm -rf '{}'