Comment 0 for bug 1428328

Kubuntu 15.04 will use sddm as a default login manager. If we try to install nvidia with nvidia-prime, the second will want to install lightdm as it depends of it. Whats more lightdm will want to install a lot of other packages.

What we need: nvidia-prime to support sddm

1. #lsb_release -rd
Description: Ubuntu Vivid Vervet (development branch)
Release: 15.04

2. #apt-cache policy nvidia-prime
nvidia-prime:
  Installed: (none)
  Candidate: 0.7
  Version table:
     0.7 0
        500 http://archive.ubuntu.com/ubuntu/ vivid/main amd64 Packages

3. What you expected to happen ?

nvidia-prime should work with sddm and do not require lightdm and all its dependencies (unity packges)

4. What happened instead ?

nvidia-prime wants to install lightdm as a dependency and a lot of other packages:

#sudo apt-get install nvidia-prime

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:

  adwaita-icon-theme apg avahi-utils bbswitch-dkms cheese-common cups-pk-helper dconf-cli evolution-data-server evolution-data-server-common evolution-data-server-online-accounts
  geoclue geoclue-ubuntu-geoip gir1.2-atk-1.0 gir1.2-freedesktop gir1.2-gdkpixbuf-2.0 gir1.2-gnomebluetooth-1.0 gir1.2-gnomekeyring-1.0 gir1.2-gtk-3.0 gir1.2-ibus-1.0
  gir1.2-notify-0.7 gir1.2-packagekitglib-1.0 gir1.2-pango-1.0 gkbd-capplet gnome-bluetooth gnome-control-center-shared-data gnome-desktop3-data gnome-menus gnome-power-manager
  gnome-screensaver gnome-session-bin gnome-settings-daemon-schemas gnome-user-guide gnome-user-share gsettings-ubuntu-schemas gstreamer1.0-clutter gvfs-backends humanity-icon-theme
  hwdata ibus indicator-applet indicator-application indicator-bluetooth indicator-datetime indicator-keyboard indicator-messages indicator-power indicator-session indicator-sound
  libaccount-plugin-1.0-0 libaccount-plugin-generic-oauth libaccount-plugin-google libaccounts-qt5-1 libappindicator3-1 libcamel-1.2-49 libcdio-cdda1 libcdio-paranoia1
  libcheese-gtk23 libcheese7 libclutter-1.0-0 libclutter-1.0-common libclutter-gst-2.0-0 libclutter-gtk-1.0-0 libcogl-common libcogl-pango20 libcogl-path20 libcogl20
  libdbusmenu-gtk3-4 libebackend-1.2-7 libebook-1.2-14 libebook-contacts-1.2-0 libecal-1.2-16 libedata-book-1.2-20 libedata-cal-1.2-23 libedataserver-1.2-18 libgdata-common
  libgdata19 libgee2 libgeocode-glib0 libgnome-bluetooth11 libgnome-desktop-3-10 libgnome-menu-3-0 libgnomekbd-common libgnomekbd8 libgoa-1.0-0b libgoa-1.0-common libgtop2-10
  libgtop2-common libgweather-3-6 libgweather-common libido3-0.1-0 libindicator3-7 libinput7 liblightdm-gobject-1-0 libnm-gtk-common libnm-gtk0 liboauth0 libpackagekit-glib2-16
  libpanel-applet0 libsignon-extension1 libsignon-glib1 libsignon-plugins-common1 libsignon-qt5-1 libtimezonemap-data libtimezonemap1 libunity-control-center1
  libunity-settings-daemon1 liburl-dispatcher1 libwacom-bin libwacom-common libwacom2 libxklavier16 libyelp0 lightdm mousetweaks nautilus-data network-manager-gnome python-notify
  python3-aptdaemon.pkcompat python3-bs4 python3-cairo python3-html5lib python3-lxml python3-smbc python3-xdg session-migration signon-keyring-extension signon-plugin-oauth2
  signon-ui signon-ui-service signon-ui-x11 signond system-config-printer-common system-config-printer-gnome ubuntu-mono ubuntu-system-service ubuntu-touch-sounds
  unity-control-center unity-control-center-signon unity-greeter unity-settings-daemon yelp yelp-xsl

Suggested packages:

  bumblebee evolution evolution-data-server-dbg apache2.2-bin libapache2-mod-dnssd samba-common ibus-clutter ibus-doc click powerd unity-system-compositor
  unity-greeter-session-broadcast url-dispatcher nautilus network-manager-openconnect-gnome network-manager-openvpn-gnome network-manager-vpnc-gnome network-manager-pptp-gnome
  python3-genshi python3-lxml-dbg python-lxml-doc libcanberra-gtk-module lightdm-remote-session-freerdp lightdm-remote-session-uccsconfigure remote-login-service metacity
  x-window-manager

The following NEW packages will be installed:

  adwaita-icon-theme apg avahi-utils bbswitch-dkms cheese-common cups-pk-helper dconf-cli evolution-data-server evolution-data-server-common evolution-data-server-online-accounts
  geoclue geoclue-ubuntu-geoip gir1.2-atk-1.0 gir1.2-freedesktop gir1.2-gdkpixbuf-2.0 gir1.2-gnomebluetooth-1.0 gir1.2-gnomekeyring-1.0 gir1.2-gtk-3.0 gir1.2-ibus-1.0
  gir1.2-notify-0.7 gir1.2-packagekitglib-1.0 gir1.2-pango-1.0 gkbd-capplet gnome-bluetooth gnome-control-center-shared-data gnome-desktop3-data gnome-menus gnome-power-manager
  gnome-screensaver gnome-session-bin gnome-settings-daemon-schemas gnome-user-guide gnome-user-share gsettings-ubuntu-schemas gstreamer1.0-clutter gvfs-backends humanity-icon-theme
  hwdata ibus indicator-applet indicator-application indicator-bluetooth indicator-datetime indicator-keyboard indicator-messages indicator-power indicator-session indicator-sound
  libaccount-plugin-1.0-0 libaccount-plugin-generic-oauth libaccount-plugin-google libaccounts-qt5-1 libappindicator3-1 libcamel-1.2-49 libcdio-cdda1 libcdio-paranoia1
  libcheese-gtk23 libcheese7 libclutter-1.0-0 libclutter-1.0-common libclutter-gst-2.0-0 libclutter-gtk-1.0-0 libcogl-common libcogl-pango20 libcogl-path20 libcogl20
  libdbusmenu-gtk3-4 libebackend-1.2-7 libebook-1.2-14 libebook-contacts-1.2-0 libecal-1.2-16 libedata-book-1.2-20 libedata-cal-1.2-23 libedataserver-1.2-18 libgdata-common
  libgdata19 libgee2 libgeocode-glib0 libgnome-bluetooth11 libgnome-desktop-3-10 libgnome-menu-3-0 libgnomekbd-common libgnomekbd8 libgoa-1.0-0b libgoa-1.0-common libgtop2-10
  libgtop2-common libgweather-3-6 libgweather-common libido3-0.1-0 libindicator3-7 libinput7 liblightdm-gobject-1-0 libnm-gtk-common libnm-gtk0 liboauth0 libpackagekit-glib2-16
  libpanel-applet0 libsignon-extension1 libsignon-glib1 libsignon-plugins-common1 libsignon-qt5-1 libtimezonemap-data libtimezonemap1 libunity-control-center1
  libunity-settings-daemon1 liburl-dispatcher1 libwacom-bin libwacom-common libwacom2 libxklavier16 libyelp0 lightdm mousetweaks nautilus-data network-manager-gnome nvidia-prime
  python-notify python3-aptdaemon.pkcompat python3-bs4 python3-cairo python3-html5lib python3-lxml python3-smbc python3-xdg session-migration signon-keyring-extension
  signon-plugin-oauth2 signon-ui signon-ui-service signon-ui-x11 signond system-config-printer-common system-config-printer-gnome ubuntu-mono ubuntu-system-service
  ubuntu-touch-sounds unity-control-center unity-control-center-signon unity-greeter unity-settings-daemon yelp yelp-xsl
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