Comment 1 for bug 1278737

With https://launchpad.net/~canonical-x/+archive/x-staging it looks much better, but there are still some problems:

Investigating (0) xserver-xorg-glamoregl-lts-saucy [ amd64 ] < 0.5.1-0ubuntu4.2~precise2 -> 3:1~ppa2 > ( oldlibs )
Broken xserver-xorg-glamoregl-lts-saucy:amd64 Depends on xserver-xorg-video-glamoregl [ amd64 ] < none -> 0.6.0-0ubuntu3 > ( x11 )
  Considering xserver-xorg-video-glamoregl:amd64 3 as a solution to xserver-xorg-glamoregl-lts-saucy:amd64 -1
  Holding Back xserver-xorg-glamoregl-lts-saucy:amd64 rather than change xserver-xorg-video-glamoregl:amd64

Investigating (0) libxatracker1-lts-saucy [ amd64 ] < 9.2.1-1ubuntu3~precise1 -> 3:1~ppa2 > ( oldlibs )
Broken libxatracker1-lts-saucy:amd64 Depends on libxatracker1 [ amd64 ] < none > ( none )
  Considering libxatracker1-lts-saucy:amd64 -1 as a solution to libxatracker1-lts-saucy:amd64 -1
  Holding Back libxatracker1-lts-saucy:amd64 rather than change libxatracker1:amd64

This can be reproduced really fast without an actual dist-upgrade by booting the current 12.04.4 live system, moving apt sources to trusty, enabling the PPA, and doing

  sudo apt-get dist-upgrade -o Debug::pkgProblemResolver=true

You will see that these two packages (xserver-xorg-glamoregl-lts-saucy and libxatracker1-lts-saucy) are held back instead of upgraded (no need to actually do the upgrade). I'm not entirely sure how to interpret this or how it can be fixed, though. Michael Vogt might have an idea.