Bug 280044

Summary: Thumbnails flicker
Product: [Applications] digikam Reporter: DrSlony <bugs>
Component: Thumbs-ImageAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: normal CC: althio.forum, caulier.gilles
Priority: NOR    
Version First Reported In: 2.0.0   
Target Milestone: ---   
Platform: Gentoo Packages   
OS: Linux   
Latest Commit: Version Fixed/Implemented In: 2.6.0
Sentry Crash Report:

Description DrSlony 2011-08-13 18:44:27 UTC 
Version:           2.0.0 (using KDE 4.7.0) 
OS:                Linux

Sometimes my thumbnails start to flicker madly. Only way to stop them doing that is to restart digiKam. One example of something that can trigger thumbnail flicker is renaming a dir with many images in it. During renaming, they start to flicker.

I can provide a screencast if this is not a known issue.

I think this flickering (the triggering of a directory monitoring procedure?) might be what makes digiKam so slow at renaming many files. Instead of just renaming them all (~700 files) in a second (as a bash script would take: for f in *.jpg; do mv "$f" "renamed_$f"; done), and then updating the thumbnails, it's taken already a few minutes and it's at 58% as I write.

Reproducible: Always

Steps to Reproduce:
Rename many files.


Expected Results:  
No flicker of thumbnails. Renaming should be very fast.
Comment 1 Marcel Wiesweg 2011-09-06 19:51:59 UTC 
Does the digikam process or any other process use CPU so much that this explains the long computation time?
Comment 2 caulier.gilles 2011-12-12 12:14:45 UTC 
It still valid using 2.4.0 release ?

Gilles Caulier
Comment 3 DrSlony 2012-01-25 22:32:13 UTC 
Sorry for not getting back sooner. I cannot reproduce this in 2.5.0, so please close as fixed. Thanks!