[Digikam-devel] [digikam] [Bug 330598] New: using full screen mode and then quitting leads to a digikamrc which causes digiKam to hang when attempting to view an album

[Philip Tuckey]

https://bugs.kde.org/show_bug.cgi?id=330598

            Bug ID: 330598
           Summary: using full screen mode and then quitting leads to a
                    digikamrc which causes digiKam to hang when attempting
                    to view an album
    Classification: Unclassified
           Product: digikam
           Version: 3.5.0
          Platform: MacPorts Packages
                OS: OS X
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: digikam-devel at kde.org
          Reporter: philip.tuckey at free.fr

Configuration: OS X 10.9.1 / macbook pro / digiKam 3.5.0 (up-to-date macports)
After using Full Screen mode and then quitting digiKam, every time digiKam is
run again it apparently starts correctly all the way up to displaying its
window but when you try to view an album it hangs (beachball of death) and has
to be force killed. This behaviour disappears if you remove digikamrc or
replace it by a version from before Full Screen mode was used. Thus it appears
that something which is saved in digikamrc when digiKam exits after using Full
Screen mode causes the subsequent problems.
(The hang symptom appears to be very similar to that reported in bug #325112.)

Reproducible: Always

Steps to Reproduce:
1. Prepare a clean starting configuration (this not obligatory, but rules out
initial corrupt files as possible sources of problems):
Move ~/Library/Preferences/KDE/share/config/digikamrc somewhere (e.g. to the
Desktop)
Make a directory containing one jpeg and nothing else, for example
~/testpictures
2. Run digiKam. The configuration wizard starts automatically.
3. Set images and metadata to be stored in ~/testpictures
4. Accept the defaults for the rest of the configuration wizard settings
5. In the digiKam window, click on Full Screen to go to Full Screen mode
6. Quit digiKam
7. Run digiKam
8. In the "My Albums" panel, click on /Users/yourusername/testpictures
Actual Results:  
DigiKam hangs (bbod), without displaying the thumbnail of the jpeg which is in
~/testpictures.

Expected Results:  
DigiKam should display the thumbnail view (one image) of ~/testpictures.

The first time digiKam runs you can click around in it, displaying the
~/testpictures album, previewing the image and so on, both before and after
using Full Screen mode. The problem only appears after quitting and restarting
digiKam. If you quit digiKam while it is displaying the thumbnail view of the
album, the next time it starts it will attempt to re-display it and will
therefore hang all by itself. It makes no difference if you quit digiKam while
in Full Screen mode (as in step 6), or if you leave Full Screen mode before
quitting digiKam. If you carry out this exercise using a pre-existing album
directory containing many pictures and a good database, the behaviour is the
same.
As I said above, the problem goes away if one removes digikamrc again, without
changing anything in the image directory. 
(I have not mentioned explicitly above that when digiKam starts you have to
quit "Tip of the day". If digiKam hangs itself because its initial display is
an album thumbnail view, you cannot quit tip of the day.)

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