[Bug 1574049] [NEW] kdegraphics-thumbnailers 4:15.12.3-0ubuntu1 uses the wrong path for plugin libraries

[Stéphane]

Public bug reported:

kdegraphics-thumbnailers 4:15.12.3-0ubuntu1 puts gsthumbnail.so and rawthumbnail.so under /usr/lib/x86_64-linux-gnu/plugins/ (see http://packages.ubuntu.com/xenial/amd64/kdegraphics-thumbnailers/filelist for the newest package file listing).
Dolphin looks for plugins under /usr/lib/x86_64-linux-gnu/qt5/plugins/ (see http://packages.ubuntu.com/xenial/amd64/dolphin/filelist for the newest package file listing).
Because of the discrepancy between the two pathes Dolphin is unable to invoke kdegraphics-thumbnailers.

This can be reproduced with the Kubuntu 16.04 LTS live image. After
installing kdegraphics-thumbnailers and activating it under the Dolphin
preferences no thumbnails are generated for PDF files.

There is a workaround until the package is fixed. This command will link
all the files from /usr/lib/x86_64-linux-gnu/plugins/ to /usr/lib/x86_64
-linux-gnu/qt5/plugins/:

sudo ln -s /usr/lib/x86_64-linux-gnu/plugins/* /usr/lib/x86_64-linux-
gnu/qt5/plugins/

The installation routine of the package should be fixed to unpack
gsthumbnail.so and rawthumbnail.so under /usr/lib/x86_64-linux-
gnu/qt5/plugins/.

** Affects: kdegraphics-thumbnailers (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1574049

Title:
  kdegraphics-thumbnailers 4:15.12.3-0ubuntu1 uses the wrong path for
  plugin libraries

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