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Tim C Bailey
Participating Frequently
June 23, 2020
Open for Voting

P: Revert Slideshow Module to previous method of generating previews

  • June 23, 2020
  • 38 replies
  • 858 views

This concerns the slideshow module in Lightroom Classic. Previously, when new folders were added to my catalogue, and I wished to view them as a slideshow, for the first time there was a delay while the slideshow previews were prepared, but for any subsequent viewings, the delay was minimal.

 

Following the latest version of LrC a few days ago, every time I wish to view a folder, there is a lengthy preparation time. The only way to avoid this is to use fn F to view a manual slideshow using the arrow key to move forward. I want to let the show progress automatically with a standard display time.

 

Your Help Team have told me that this is now standard in the latest version of LrC. This really is not acceptable in a supposedly professional application, and a very backward move. I use LrC daily, and need to view my photos frequently. I cannot wait 2 minutes or more before each folder starts to play. Please address this issue as soon as possible.

    38 replies

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    Lhotka
    Known Participant
    August 21, 2020
    And just to be clear - I've generated standard and 1-1 previews in the library module, and in the slide show module, and there's is absolutely no difference in performance before or after doing so.  9.2.1 was the last version that worked.  Please just swap  out that code for the new code and give us a module that's functional again.

    L
    Lhotka
    Known Participant
    August 21, 2020
    That's absolutely not true - preparing 200 images takes several minutes even on a modern machine (6-core, 32GB, eGPU).  It looks like it's rendering them from scratch every time, and after the progress bar makes it to the full count, then we get a spinning beachball for another minute or so before the show starts.  This is a deal-breaking bug. I've downgraded Lightroom to two versions ago when it worked as expected, which then eliminates all the bug fixes for performance on the 16" MBP.   Fixing it should be simple - revert to the codebase that didn't have the bug! 

    F
    FeedbackCommunityMember
    Inspiring
    August 3, 2020
    Please get it changed back - it is very frustrating - I use it to give talks but cannot do so now.
    G
    Adobe Employee
    Goapher
    Adobe Employee
    June 25, 2020
    Yes - that is the new behaviour. Though, if nothing has changed in the images, and previews are already available, the preview task should be completed quickly.

    I have raised your issue with the development team, and we are trying to see how this can be addressed.

    Thanks for reporting, and appreciate your patience.
    T
    Tim C BaileyAuthor
    Participating Frequently
    June 24, 2020
    In Slideshow, if I press the preview button, it prepares the previews. But then if I press play, it prepares the previews again before it actually plays. Before the recent update, once the previews had been generated the first time, there was no delay with subsequent  viewings. The person who replied to my chat enquiry said that this was standard on the latest version of LrC.
    G
    Adobe Employee
    Goapher
    Adobe Employee
    June 24, 2020
    Thanks, Tim for checking.

    Generating the standard previews will ensure the slideshow applies any edits or presets to the images, so they look as expected in the slideshow preview as well. If you had already generated the previews, it should not take much time when generating the slideshow. Could you please check if that is the case?

    T
    Tim C BaileyAuthor
    Participating Frequently
    June 24, 2020
    Yes, the time is taken up in preparing previews. The slideshow does not start until the previews complete, maybe two minutes or more depending on the folder size. 
    G
    Adobe Employee
    Goapher
    Adobe Employee
    June 24, 2020
    Tim, Does the time to prepare the slideshow also include the time to generate the previews? Can you ensure the standard previews are created for the images in the Slideshow before trying to play the slideshow? 
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