From: nospam@needed.invalid   
      
   On 9/21/2022 2:12 PM, wAYNE wrote:   
   > Been using Shotwell as control for desktop slideshow.  Once every 3 min,   
   image changes.  I noticed today, however, that after I deleted some existing   
   images from the background folder and then reuploaded to Shotwell, it's like   
   it's still trying to    
   display the missing images. Even tried copying existing images to a new   
   folder, background1, then deleting prior folder and all images from Shotwell   
   and it's still showing black occasionally.  Any ideas welcome.  Perhaps   
   there's a Shotwell config    
   cached that I need to delete?   
   >   
      
   /home/wayne/.local/share/shotwell/data/photo.db    # sqlite database   
      
   Library: Missing Files           # shows thumbnails sitting in the thumbnail   
   directory   
                                     # for files that no longer exist. Hard to   
   say what would   
                                     # happen if the thumbnails got deleted.   
   Probably "anarchy".   
                                     # ~/.cache/shotwell   contains thumbnails.   
                                     # The database is the controlling element,   
   in any case.   
                                     # It is worshiped.   
      
   Select files with mouse          # Tell the tool which vacant files to deal   
   with   
   Orange selection rectangles   
      
   Right-click, "Remove from Library"   # Should remove the vacant files from   
   photo.db .   
                                         # Presumably removing their thumbnail as   
   well.   
      
   *******   
      
   sqlite3 /home/wayne/.local/share/shotwell/data/photo.db .dump >    
   hoto_database_text.txt   
      
   That will show you the current database contents, and likely,   
   what it plans to use for a slideshow. Just a guess.   
      
   The database has a number of "CREATE INDEX" calls near the end. And   
   somehow, that's how it tells one thumbnail from another. The thumbnail   
   identifiers don't seem to be stored in a table, that I can see. My   
   understanding   
   of databases is very shaky.   
      
   There are fewer thumbnails than photos. I have no idea what that means.   
   There are more photos of the .png persuasion, than there are thumbnails.   
      
   The MD5SUM value in the table, is for the master photograph, not for a thumb.   
      
   This appears to be about as much fun as you would expect.   
      
       Paul   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)