software-properties-gtk silently crashes when sourcegear repository is enabled

Bug #1090925 reported by Andrei Dziahel on 2012-12-16
This bug affects 2 people
Affects Status Importance Assigned to Milestone
software-properties (Ubuntu)

Bug Description


1. Add sourcegear debian repository with `aptdcon --add-repository 'deb quantal main' && sudo apt-key adv --fetch-keys` command
2. refresh APT cache with aptdcon -c
3. run software-properties-gtk

Expected: "Software Properties" shows up

Actual behavior: software-properties-gtk crashes silently and apport prompt shows up

Disabling mentioned repository fixes this issue.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: software-properties-gtk 0.92.9
ProcVersionSignature: Ubuntu 3.5.0-20.31-generic
Uname: Linux 3.5.0-20-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu9
Architecture: amd64
Date: Sat Dec 15 17:22:00 2012
EcryptfsInUse: Yes
MarkForUpload: True
PackageArchitecture: all
SourcePackage: software-properties
UpgradeStatus: Upgraded to quantal on 2012-11-05 (40 days ago)

Andrei Dziahel (develop7) wrote :
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in software-properties (Ubuntu):
status: New → Confirmed
d❤vid (kwill) wrote :

I get an issue specifically with the diffmerge package (running Ubuntu 12.04) - see

Troy Stanger (stanger) wrote :

I spent today debugging the issue with the diffmerge package (disclaimer: I am the one that built it originally). It turns out the error was that the control file had the wrong line endings (CRLF instead of simply LF). I have fixed the issue on our end and will be rebuilding the deb.

d❤vid (kwill) wrote :

Thanks Troy :)

Brian Murray (brian-murray) wrote :

I think this is the relevant traceback:

Traceback (most recent call last):
  File "/usr/bin/software-properties-gtk", line 103, in <module>
    app = SoftwarePropertiesGtk(datadir=options.data_dir, options=options, file=file)
  File "/usr/lib/python3/dist-packages/softwareproperties/gtk/", line 178, in __init__
  File "/usr/lib/python3/dist-packages/softwareproperties/gtk/", line 1097, in init_drivers
    self.devices = detect.system_device_drivers()
  File "/usr/lib/python3/dist-packages/UbuntuDrivers/", line 415, in system_device_drivers
    for pkg, pkginfo in system_driver_packages(apt_cache).items():
  File "/usr/lib/python3/dist-packages/UbuntuDrivers/", line 319, in system_driver_packages
    for p in packages_for_modalias(apt_cache, alias):
  File "/usr/lib/python3/dist-packages/UbuntuDrivers/", line 164, in packages_for_modalias
    cache_map = _apt_cache_modalias_map(apt_cache)
  File "/usr/lib/python3/dist-packages/UbuntuDrivers/", line 129, in _apt_cache_modalias_map
    m = package.candidate.record['Modaliases']
  File "/usr/lib/python3/dist-packages/apt/", line 429, in record
    return Record(self._records.record)
  File "/usr/lib/python3/dist-packages/apt/", line 186, in __init__
    self._rec = apt_pkg.TagSection(record_str)
ValueError: Unable to parse section data

Changed in software-properties (Ubuntu):
status: Confirmed → Triaged
importance: Undecided → Medium
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