** Description changed:

+ SRU request:
+ 
+ [Impact]
+ 
+  * As a result of this bug, the lightdm configuration file will always
+ been overwritten. This is not desirabled or expected and causes serious
+ problems on any *buntu system other than Ubuntu.
+ 
+ [Test Case]
+ 
+  * Enable the precise-proposed or the saucy-proposed repository and
+ install nvidia-prime (0.4.2~hybrid0.0.1 in precise or 0.4.2~hybrid0.1 in
+ saucy).
+ 
+  * If the package doesn't overwrite the lightdm greeter in the
+ lightdm.conf file, then the fix is correct.
+ 
+ [Regression Potential]
+ 
+  * The regression potential here should be zero, as we only replace two
+ conditions ( "test -f" and "test ! -s") that can never be true at the
+ same time, with the "test -s" condition which does exactly what we need
+ - it checks that the file exists and has a size greater than zero - and
+ reuse the existing file if this condition is satisfied.
+ 
+ ----
+ 
  I have done a fresh install of saucy, before the installation of nvidia-
  prime lightdm-gtk-greeter was set in lightdm.conf. During the
  installation of nvidia-prime the greeter ist changed to unity-greeter
  which causes a crash and no display after a reboot. When changing the
  greeter back to lightdm-gtk-greeter everything works fine.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: nvidia-prime 0.4
  ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0
  Uname: Linux 3.11.0-7-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.12.1-0ubuntu3
  Architecture: amd64
  Date: Wed Sep 11 22:11:06 2013
  InstallationDate: Installed on 2013-09-11 (0 days ago)
  InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130902.1)
  MarkForUpload: True
  PackageArchitecture: all
  SourcePackage: nvidia-prime
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1224098

Title:
  xserver wont start after nvidia-prime installation

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