Selecting previously deselected package ubuntu-mythtv-frontend.
dpkg: regarding .../ubuntu-mythtv-frontend_0.20.99+trunk14513-0ubuntu0~mythbuntu2_all.deb containing ubuntu-mythtv-frontend, pre-dependency problem:
 ubuntu-mythtv-frontend pre-depends on gdm
  gdm is unpacked, but has never been configured.
dpkg: error processing /var/cache/apt/archives/ubuntu-mythtv-frontend_0.20.99+trunk14513-0ubuntu0~mythbuntu2_all.deb (--unpack):
 pre-dependency problem - not installing ubuntu-mythtv-frontend
Errors were encountered while processing:
 /var/cache/apt/archives/ubuntu-mythtv-frontend_0.20.99+trunk14513-0ubuntu0~mythbuntu2_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)