[Bug 1877549] Re: xserver-xorg-video all error (marked as third party software) while upgrading to 20.04

[Francesco Minnocci]

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

ppa-purge didn't work, and I don't see the ppa when running `sudo apt-
get update`. Should I just remove it from /etc/apt/sources.list.d
manually?

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https://bugs.launchpad.net/bugs/1877549

Title:
  xserver-xorg-video all error (marked as third party software) while
  upgrading to 20.04

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

Bug description:
  By looking at the log, there seems to be an error calculating the
  upgrade for xserver-xorg-video-all, but the interactive dialog showed
  the error message for third party software interfering with the
  upgrade; I don't know how to debug this further.

  Ubuntu 18.04

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.37
  ProcVersionSignature: Ubuntu 5.3.0-51.44~18.04.2-generic 5.3.18
  Uname: Linux 5.3.0-51-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.14
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: ubuntu:GNOME
  Date: Fri May  8 11:45:44 2020
  InstallationDate: Installed on 2019-09-22 (228 days ago)
  InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to bionic on 2020-05-08 (0 days ago)
  VarLogDistupgradeTermlog:

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