[Bug 1315670] [NEW] KDE driver manager hangs on 81% when installing nvidia drivers

[Lastique]

Public bug reported:

Just upgraded to Kubuntu 14.04. KDE Driver manager suggested to install
proprietary drivers for Nvidia video card. I selected the recommended
driver (331.38) and accepted. The driver manager started the
installation process but hung on 81%, all I could do is to close it.
After that dpkg database was left locked and inconsistent.

The process actually was waiting for a user's input. I figured that out
when I later executed "sudo dpkg --configure -a". The driver installer
showed the following prompt:

Configuration file '/etc/init/nvidia-persistenced.conf'
 ==> Deleted (by you or by a script) since installation.
 ==> Package distributor has shipped an updated version.
   What would you like to do about it ?  Your options are:
    Y or I  : install the package maintainer's version
    N or O  : keep your currently-installed version
      D     : show the differences between the versions
      Z     : start a shell to examine the situation
 The default action is to keep your current version.
*** nvidia-persistenced.conf (Y/I/N/O/D/Z) [default=N] ? y

I don't remember removing that file, but in any case the driver manager
must handle such user input requests properly and not hang.

PS: Moved from https://bugs.kde.org/show_bug.cgi?id=334232.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: kubuntu-driver-manager 14.04ubuntu9
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
CurrentDesktop: KDE
Date: Sat May  3 17:10:02 2014
InstallationDate: Installed on 2013-10-11 (203 days ago)
InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: kubuntu-driver-manager
UpgradeStatus: Upgraded to trusty on 2014-05-02 (0 days ago)

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


** Tags: amd64 apport-bug trusty

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Title:
  KDE driver manager hangs on 81% when installing nvidia drivers

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