[Bug 1076832] Re: "Additional drivers" tab doesn't work when Software Sources was launched by synaptic

[Matthew Paul Thomas]

** Description changed:

- To reproduce:
+ software-properties-gtk 0.92.9, Ubuntu 12.10
  
  1. Install synaptic and run it
  2. Click Settings->repositories
  3. Click "Additional software" tab
  4. Attempt to change to a different driver.
  
  Expected result: The driver gets installed.
  
  Actual result: Operation never completes.
  
  Analysis: This happens because Software Sources is waiting on Synaptic
  to exit before performing apt commands. But Synaptic is itself waiting
  on Software Sources to exit, and you can't close Synaptic before this
  happens because it's UI is disabled.
  
  There is no message telling the user that this is what has happened, so
  just as with the automatic U1 installer, the user does not know they
  need to close other package managers before the process will complete.
  So they are just left waiting forever. Of course in this case it is
  impossible for the user to unlock the package db without closing
  everything down and starting over.
  
- ProblemType: Bug
- DistroRelease: Ubuntu 12.10
- Package: software-properties-gtk 0.92.9
- ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
- Uname: Linux 3.5.0-18-generic x86_64
- ApportVersion: 2.6.1-0ubuntu6
- Architecture: amd64
- Date: Fri Nov  9 01:59:30 2012
- InstallationDate: Installed on 2012-11-08 (0 days ago)
- InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
- MarkForUpload: True
- PackageArchitecture: all
- SourcePackage: software-properties
- UpgradeStatus: No upgrade log present (probably fresh install)
+ <https://wiki.ubuntu.com/SoftwareAndUpdatesSettings#drivers>: "If you
+ choose 'Apply Changes' ... The 'proprietary drivers in use' text should
+ change to the status text for the operations (for example, 'Waiting for
+ other tasks to complete…'...)"
+ 
+ <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, '{requesting application} can’t
+ install or remove software until {locking program} exits.', with
+ 'Cancel' and 'Keep Waiting' buttons."

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https://bugs.launchpad.net/bugs/1076832

Title:
  "Additional drivers" tab doesn't work when Software Sources was
  launched by synaptic

Status in “software-properties” package in Ubuntu:
  Triaged
Status in “synaptic” package in Ubuntu:
  Confirmed

Bug description:
  software-properties-gtk 0.92.9, Ubuntu 12.10

  1. Install synaptic and run it
  2. Click Settings->repositories
  3. Click "Additional software" tab
  4. Attempt to change to a different driver.

  Expected result: The driver gets installed.

  Actual result: Operation never completes.

  Analysis: This happens because Software Sources is waiting on Synaptic
  to exit before performing apt commands. But Synaptic is itself waiting
  on Software Sources to exit, and you can't close Synaptic before this
  happens because it's UI is disabled.

  There is no message telling the user that this is what has happened,
  so just as with the automatic U1 installer, the user does not know
  they need to close other package managers before the process will
  complete. So they are just left waiting forever. Of course in this
  case it is impossible for the user to unlock the package db without
  closing everything down and starting over.

  <https://wiki.ubuntu.com/SoftwareAndUpdatesSettings#drivers>: "If you
  choose 'Apply Changes' ... The 'proprietary drivers in use' text
  should change to the status text for the operations (for example,
  'Waiting for other tasks to complete…'...)"

  <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, '{requesting application} can’t
  install or remove software until {locking program} exits.', with
  'Cancel' and 'Keep Waiting' buttons."

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