Не удается обновить стек Ubuntu Enablement Stack

Документы ubuntu говорят мне, что я могу обновить свой рабочий стол до 14.04.2, выполнив:

sudo apt-get install --install-recommends \
linux-generic-lts-vivid \
xserver-xorg-core-lts-vivid \
xserver-xorg-lts-vivid \
xserver-xorg-video-all-lts-vivid \
xserver-xorg-input-all-lts-vivid \
libwayland-egl1-mesa-lts-vivid

Однако, когда я это делаю, я сталкиваюсь с проблемами пакета:

Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies.
 empathy : Depends: libclutter-gst-2.0-0 (>= 0.10.0) but it is not going to be installed
           Depends: libcogl15 (>= 1.15.8) but it is not going to be installed
 libcheese-gtk23 : Depends: libcogl15 (>= 1.15.8) but it is not going to be installed
 libcheese7 : Depends: libclutter-gst-2.0-0 (>= 0.10.0) but it is not going to be installed
              Depends: gstreamer1.0-clutter but it is not going to be installed
 libclutter-1.0-0 : Depends: libcogl-pango15 (>= 1.15.8) but it is not going to be installed
                    Depends: libcogl15 (>= 1.15.8) but it is not going to be installed
 libclutter-gtk-1.0-0 : Depends: libcogl15 (>= 1.15.8) but it is not going to be installed
 libwayland-egl1-mesa-lts-vivid : Depends: libegl1-mesa-lts-vivid (= 10.5.2-0ubuntu1~trusty1) but it is not going to be installed
                                  Conflicts: xorg-renamed-package-lts-utopic
 xserver-xorg-core-lts-vivid : Depends: libgbm1-lts-vivid (>= 8.1~0) but it is not going to be installed
                               Recommends: libgl1-mesa-dri-lts-vivid (>= 7.10.2-4) but it is not going to be installed
                               Conflicts: xorg-renamed-package-lts-utopic
 xserver-xorg-input-all-lts-vivid : Depends: xserver-xorg-input-evdev-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-input-vmmouse-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-input-synaptics-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-input-wacom-lts-vivid but it is not going to be installed
 xserver-xorg-lts-vivid : Depends: xserver-xorg-input-evdev-lts-vivid but it is not going to be installed
                          Recommends: libgl1-mesa-dri-lts-vivid but it is not going to be installed
                          Recommends: libgl1-mesa-glx-lts-vivid but it is not going to be installed
                          Recommends: libegl1-mesa-lts-vivid but it is not going to be installed
                          Recommends: libegl1-mesa-drivers-lts-vivid but it is not installable
                          Recommends: libgbm1-lts-vivid but it is not going to be installed
                          Recommends: libgles2-mesa-lts-vivid but it is not going to be installed
                          Recommends: libgles1-mesa-lts-vivid but it is not going to be installed
                          Conflicts: libegl1-mesa (>= 0~)
                          Conflicts: libgl1-mesa-dri (>= 0~)
                          Conflicts: libgl1-mesa-dri:i386 (>= 0~)
                          Conflicts: libgl1-mesa-glx (>= 0~)
                          Conflicts: libgl1-mesa-glx:i386 (>= 0~)
                          Conflicts: libglapi-mesa (>= 0~)
                          Conflicts: libglapi-mesa:i386 (>= 0~)
                          Conflicts: libgles1-mesa (>= 0~)
                          Conflicts: libgles2-mesa (>= 0~)
                          Conflicts: xorg-renamed-package-lts-utopic
 xserver-xorg-video-all-lts-vivid : Depends: xserver-xorg-video-ati-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-video-cirrus-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-video-fbdev-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-video-intel-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-video-mga-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-video-neomagic-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-video-nouveau-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-video-openchrome-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-video-savage-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-video-siliconmotion-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-video-sisusb-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-video-tdfx-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-video-trident-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-video-vesa-lts-vivid but it is not going to be installed
                                    Depends: xserver-xorg-video-vmware-lts-vivid but it is not going to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

Мне удалось запустить команду, чтобы просто установить ядро, но есть ли решение для обновления пакетов xserver / mesa?