[Bug 668846] Re: No obvious error when Software Centre can't install due to Synaptic being open

[Sebastian Heinlein]

Good idea to use a timeout. Could be implemented on the
aptdaemon/gtk3widgets level.

Sometimes a background task could block your transaction (e.g. fetching
the latest updates) - those background tasks use an apt-get based cron
job. We could detect if it is part of the cron job or if the apt-get
command runs in a terminal.

Furthermore we could hardcode nice names for apt-get, aptitude and dpkg.

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https://bugs.launchpad.net/bugs/668846

Title:
  No obvious error when Software Centre can't install due to Synaptic
  being open

Status in “aptdaemon” package in Ubuntu:
  Triaged
Status in “software-center” package in Ubuntu:
  Confirmed

Bug description:
  Ubuntu Software Center 3.0.5, Ubuntu 10.10

  If Synaptic is running and you attempt to install software from the
  Software Centre, it just sits there with the in progress icon turning
  (see attached image). It is only when you click on the icon that it
  says: 'Waiting for synaptic to exit'. A notification would make this
  more obvious for the user.

  <https://wiki.ubuntu.com/SoftwarePackageOperations#general>: "If apt
  (/var/lib/apt/lists/lock) or dpkg (/var/lib/dpkg/lock) is locked by
  something other than aptdaemon (STATUS_WAITING_LOCK) for more than 30
  seconds, an alert should appear once, '{calling application} can’t
  install or remove software until {locking program} exits.', with
  'Cancel' and 'Keep Waiting' buttons..."

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