Even though you have all the 3rd party options unticked you still have
xorg packages from a PPA and the versions of those packages are greater
than the release to which you are trying to upgrade so the upgrade
calculation fails. You'll need to use ppa-purge to remove that PPA.
** Changed in: ubuntu-release-upgrader (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1681197
Title:
16.04 - 16.10 to 17.04 upgrade fail
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