[dolphin] [Bug 524430] New: Mounted LUKS-encrypted disk can't be unmounted while Dolphin is running

https://bugs.kde.org/show_bug.cgi?id=524430

            Bug ID: 524430
           Summary: Mounted LUKS-encrypted disk can't be unmounted while
                    Dolphin is running
    Classification: Applications
           Product: dolphin
      Version First git-master
       Reported In:
          Platform: KDE Linux
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected]
  Target Milestone: ---

STEPS TO REPRODUCE
1. Have a LUKS-encrypted disk
2. Plug it in
3. In Plasma's Disks & Devices popup, click "Mount and Open"
4. Enter the password -> Dolphin opens  to show the contents of the disk
5. Immediately click the Unmount button for the disk in either Plasma's Disks &
Devices popup, or Dolphin's sidebar


OBSERVED RESULT
An error message saying "One or more files on this device are open in
application "kioworker".


EXPECTED RESULT
The disk is unmounted.


ADDITIONAL INFORMATION
Closing the Dolphin window releases kioworker's hold on the disk and allows it
to be unmounted from Plasma's Disks & Devices popup. Even navigating away from
the disk or closing its tab is not enough; I have to actually quit Dolphin
entirely.

This only appears to happen with my LUKS-encrypted disks; unencrypted flash
drives do not exhibit the problem as described.


SOFTWARE/OS VERSIONS
Operating System: KDE Linux 2026-08-13
KDE Plasma Version: 6.7.80
KDE Frameworks Version: 6.30.0
Qt Version: 6.11.1
Kernel Version: 7.1.8-arch1-3 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7840U w/ Radeon™ 780M Graphics
Memory: 17 GB of RAM (16.0 GB usable)
Graphics Processor: AMD Radeon 780M Graphics

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