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[Daniel Barrett <dbarrett@xxxxxxxxxxxxxxx>]

This appears to be fixed as of Ubuntu 15.10.

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https://bugs.launchpad.net/bugs/1223291

Title:
  "sudo emacs" cannot be backgrounded afterward by shell

Status in emacs23 package in Ubuntu:
  New

Bug description:
  When I run:

    $ sudo emacs /etc/myfile

  and later try to background it by typing ^Z in the invoking shell, the
  keystroke is ignored and merely echoes to the screen as "^Z".

  This did NOT happen in Ubuntu 10.04 LTS.

  This does NOT happen for any of the following commands:

    $ sudo emacs -nw /etc/myfile           (which runs emacs in the existing gnome-terminal window)
    $ sudo gnome-terminal                  (a different program that also opens a window)

  I realize that there are workarounds, like manually sending the
  suspend signal:

    $ sudo kill -TSTP <pid of emacs>

  but something special and new (and unwanted) is happening with emacs
  here.

  Other users have experienced this problem on other distros:
  http://unix.stackexchange.com/questions/81482/how-to-send-to-background-a-running-process-started-with-sudo

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: emacs23 23.4+1-4ubuntu1
  ProcVersionSignature: Ubuntu 3.8.0-30.44-generic 3.8.13.6
  Uname: Linux 3.8.0-30-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: amd64
  Date: Tue Sep 10 06:57:04 2013
  InstallationDate: Installed on 2013-08-31 (9 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  MarkForUpload: True
  SourcePackage: emacs23
  UpgradeStatus: No upgrade log present (probably fresh install)

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