[dolphin] [Bug 448302] New: Dolphin file previews are being regenerated on non OS drive everytime directory is being reopened

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=448302

            Bug ID: 448302
           Summary: Dolphin file previews are being regenerated on non OS
                    drive everytime directory is being reopened
           Product: dolphin
           Version: 21.12.1
          Platform: Archlinux Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: wpprfrth at posteo.de
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY
Dolphin regenerates local thumbnails for videos etc. on hard drives connected
via usb or sata that are not the drive with the operating system installed
everytime the directory is being viewed.


STEPS TO REPRODUCE
1. connect a new hard drive via sata
2. go to a folder on that hard drive that contains a lot of video files, let it
generate the thumbnails for the first time
3. close dolphin and repeat step 2

OBSERVED RESULT
The thumbnails are being regenerated everytime which causes loud cpu noise and
high usage for that time

EXPECTED RESULT
thumbnails should be loaded from cache

SOFTWARE/OS VERSIONS
Arch Linux [Linux tyrus 5.15.13-arch1-1 #1 SMP PREEMPT Wed, 05 Jan 2022
16:20:59 +0000 x86_64 GNU/Linux]
KDE Plasma Version: 5.23.5
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION

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