[Bug 1842190]

[Brian Murray]

*** This bug is a duplicate of bug 1069133 ***
    https://bugs.launchpad.net/bugs/1069133

Reviewing the files from your upgrade attempt you seem to have enabled a
PPA that provides Xorg packages. This will prevent the upgrade as that
PPA contains package version numbers greater than the release to which
you are upgrading. You can revert the PPA by installing the ppa-purge
package from the official Ubuntu archive and then running 'sudo ppa-
purge oibaf'.  After that you try upgrading and again and if it still
fails open a new bug report.  Thanks and good luck!

** Tags added: ppa xorg-oibaf-ppa

** This bug has been marked a duplicate of bug 1069133
   Get upgrade error 12.04 - 12.10 "Could not determine upgrade" - xorg from ppa

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https://bugs.launchpad.net/bugs/1842190

Title:
  upgrade to 19.04

Status in ubuntu-release-upgrader package in Ubuntu:
  Invalid

Bug description:
  I am trying to upgrate to Ubuntu 19, mainly because my Ubuntu 18
  installation went crazy, and the Intel graphics driver has decided to
  play tricks. I can now see many small (dashed) horizontal balck lines
  on my monitor. But the upgrade fails and I am asked to use ppa-purge
  to get read of unofficial software. I have removed all unofficial
  software I could find, but it is still not letting me upgrade.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.34
  ProcVersionSignature: Ubuntu 4.15.0-58.64-generic 4.15.18
  Uname: Linux 4.15.0-58-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Aug 31 20:16:01 2019
  InstallationDate: Installed on 2016-04-22 (1226 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2019-08-31 (0 days ago)
  mtime.conffile..etc.update-manager.release-upgrades: 2019-08-31T19:39:21.589581

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