How to roll back a package update in Ubuntu?

Question

ubuntu

After the last update (04.08), the settings of the additional laptop keys have changed - Fn and others like mute (a separate button).
Buttons work but call other commands.
Some shortcuts (eg Ctrl+Alt+T) don't work either.
Ubuntu 14.04 system + Cinnamon
Beech HP probook 470 g1
Here is the last update log (/var/log/apt/history.log):

Start-Date: 2014-08-04 23:52:26
Commandline: aptdaemon role='role-commit-packages' sender=':1.81'
Upgrade: cinnamon-common:amd64 (2.3.0-20140802040011-trusty, 2.3.0-20140804040007-trusty), cinnamon-session:amd64 (2.3.0-20140802043007-trusty, 2.3.0-2014080404), multiarch-trusty support:amd64 (2.19-0ubuntu6, 2.19-0ubuntu6.1), gir1.2-cmenu-3.0:amd64 (2.3.0-20140802012106-trusty, 2.3.0-20140804012110-trusty), nemo-data:amd64 (2.3. 0-20140802010007-trusty, 2.3.0-20140804010005-trusty), cinnamon-bluetooth:amd64 (3.8.4-20140802012005-trusty, 3.8.4-20140804012003-trusty), libmuffin0:amd64 (2.3.0 2.3.0-20140804003005-trusty) trusty), cinnamon-session-common:amd64 (2.3.0-20140802043007-trusty, 2.3.0-20140804043005-trusty), cinnamon:amd64 (2.3.0-20140802040011-trusty, 2.3.0-20140804040007-trusty), libnemo-extension1:amd64 (2.3.0-20140802010007-trusty, 2.3.0-20140804010005-trusty), libc-dev-bin:amd64 (2.19-0ubuntu6, 2.19-0ubuntu6.1), gir1 .2-muffin-3.0:amd64 (2.3.0-20140802003004-trusty, 2.3.0-20140804003005-trusty), libc-bin:amd64 (2.19-0ubuntu6, 2.19-0ubuntu6.1), libc6:amd64 (2.19-0ubuntu6 , 2.19-0ubuntu6.1), libc6:i386 (2.19-0ubuntu6, 2.19-0ubuntu6.1), nemo-fileroller:amd64 (2.2.0-20140802020004-trusty, 2.2.0-20140804020004-trusty), cinnamon-screensaver: amd64 (2.3.0-20140802013003-trusty, 2.3.0-20140804013003-trusty), cjs:amd64 (2.3.0-20140802020120-trusty, 2.3.0-20140804020112-trusty), libcinnamon-menu-3-0:amd64 ( 2.3.0-20140802012106-trusty, 2.3.0-20140804012110-trusty), cinnamon-desktop-data:amd64 (2.3.0-20140802011504-trusty, 2.3.0-20140804011505-trusty), libcinnamon-control-center4 (1:ammond6-center4 2.3.0-20140802013147-trusty, 2.3.0-20140804013201-trusty), cinnamon-control-center:amd64 (2.3.0-20140802013147-trusty, 2.3.0-20140804013201-trusty), muffin-common:amd64 (2.3.0- 20140802003004-Trusty, 2.3.0-20140804003005-Trusty), LIBCJS0C: AMD64 (2.3.0-20140802020120-Trusty, 2.3.0-20140804020112-Trusty), GIR1.2-Cinnamondesktop-3.0: AMD64 (2.3.0-20140802011504- trusty, 2.3.0-20140804011505-trusty), libcinnamon-desktop0:amd64 (2.3.0-20140802011504-trusty, 2.3.0-20140804011505-trusty), libc6-dbg:amd64 (2.19-0ubuntu6, 2.19-0ubuntu6) , libc6-dev:amd64 (2.19-0ubuntu6, 2.19-0ubuntu6.1), cinnamon-control-center-data:amd64 (2.3.0-20140802013147-trusty, 2.3.0-20140804013201-trusty)0-20140804003005-trusty), libcjs0c:amd64 (2.3.0-20140802020120-trusty, 2.3.0-20140804020112-trusty), gir1.2-cinnamondesktop-3.0:amd64 (2.3.0-20140802011504, 2.3-trusty0, 2.3-trusty 20140804011505-trusty), libcinnamon-desktop0:amd64 (2.3.0-20140802011504-trusty, 2.3.0-20140804011505-trusty), libc6-dbg:amd64 (2.19-0ubuntu6, 2.19-0ubuntu6.1), libc64 (2.19-0ubuntu6, 2.19-0ubuntu6.1), cinnamon-control-center-data:amd64 (2.3.0-20140802013147-trusty, 2.3.0-20140804013201-trusty)0-20140804003005-trusty), libcjs0c:amd64 (2.3.0-20140802020120-trusty, 2.3.0-20140804020112-trusty), gir1.2-cinnamondesktop-3.0:amd64 (2.3.0-20140802011504, 2.3-trusty0, 2.3-trusty 20140804011505-trusty), libcinnamon-desktop0:amd64 (2.3.0-20140802011504-trusty, 2.3.0-20140804011505-trusty), libc6-dbg:amd64 (2.19-0ubuntu6, 2.19-0ubuntu6.1), libc64 (2.19-0ubuntu6, 2.19-0ubuntu6.1), cinnamon-control-center-data:amd64 (2.3.0-20140802013147-trusty, 2.3.0-20140804013201-trusty)cinnamon-control-center-data:amd64 (2.3.0-20140802013147-trusty, 2.3.0-20140804013201-trusty)cinnamon-control-center-data:amd64 (2.3.0-20140802013147-trusty, 2.3.0-20140804013201-trusty)
End-Date: 2014-08-04 23:54:24

What to do in this situation?
How can I roll back a package or the entire update? Or how to reconfigure to normal values?

Answer 1

And what, in cinnamon there are no key settings?