[Bug 1350808] [NEW] update-manager unexpectedly restarts system

[jlutz]

Public bug reported:

When update-manager is finished updating, it pops up a dialog "System
needs restarting. [Restart Now], [Restart Later], [Cancel]".
Unfortunately, the default button is "Restart Now" is the default
button. If the popup occurs in the middle of some other work, this popup
grabs the focus, and takes an [Enter], that was meant for some other
window, as a selection of "Restart Now" and reboots the system without
further confirmation. The whole session is killed without a chance to
save current work.

Expected behaviour: either have "Restart Later" as default action, or
(better): no default action at all (no reaction on keyboard events), but
only on real mouse clicks.

$ lsb_release -rd
Description:	Ubuntu 14.04.1 LTS
Release:	14.04

$ apt-cache policy update-manager
update-manager:
  Installiert:           1:0.196.12
  Installationskandidat: 1:0.196.12
  Versionstabelle:
 *** 1:0.196.12 0
        500 http://de.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1:0.196.11 0
        500 http://de.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: update-manager 1:0.196.12
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
CurrentDesktop: XFCE
Date: Thu Jul 31 13:12:03 2014
GsettingsChanges:
 b'com.ubuntu.update-manager' b'show-details' b'true'
 b'com.ubuntu.update-manager' b'window-height' b'835'
 b'com.ubuntu.update-manager' b'first-run' b'false'
 b'com.ubuntu.update-manager' b'window-width' b'646'
 b'com.ubuntu.update-manager' b'launch-time' b'1406804350'
InstallationDate: Installed on 2013-08-22 (342 days ago)
InstallationMedia: Xubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1)
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: Upgraded to trusty on 2014-05-19 (72 days ago)

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug trusty

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https://bugs.launchpad.net/bugs/1350808

Title:
  update-manager unexpectedly restarts system

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  When update-manager is finished updating, it pops up a dialog "System
  needs restarting. [Restart Now], [Restart Later], [Cancel]".
  Unfortunately, the default button is "Restart Now" is the default
  button. If the popup occurs in the middle of some other work, this
  popup grabs the focus, and takes an [Enter], that was meant for some
  other window, as a selection of "Restart Now" and reboots the system
  without further confirmation. The whole session is killed without a
  chance to save current work.

  Expected behaviour: either have "Restart Later" as default action, or
  (better): no default action at all (no reaction on keyboard events),
  but only on real mouse clicks.

  $ lsb_release -rd
  Description:	Ubuntu 14.04.1 LTS
  Release:	14.04

  $ apt-cache policy update-manager
  update-manager:
    Installiert:           1:0.196.12
    Installationskandidat: 1:0.196.12
    Versionstabelle:
   *** 1:0.196.12 0
          500 http://de.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       1:0.196.11 0
          500 http://de.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: update-manager 1:0.196.12
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Thu Jul 31 13:12:03 2014
  GsettingsChanges:
   b'com.ubuntu.update-manager' b'show-details' b'true'
   b'com.ubuntu.update-manager' b'window-height' b'835'
   b'com.ubuntu.update-manager' b'first-run' b'false'
   b'com.ubuntu.update-manager' b'window-width' b'646'
   b'com.ubuntu.update-manager' b'launch-time' b'1406804350'
  InstallationDate: Installed on 2013-08-22 (342 days ago)
  InstallationMedia: Xubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1)
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to trusty on 2014-05-19 (72 days ago)

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