[dolphin] [Bug 428379] New: "Disks and Devices" notification keeps switching monitor after choosing "Open with File manager"

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=428379

            Bug ID: 428379
           Summary: "Disks and Devices" notification keeps switching
                    monitor after choosing "Open with File manager"
           Product: dolphin
           Version: 20.08.2
          Platform: Neon Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: krzmbrzl at gmail.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

Note: I don't actually think this is related to dolphin but I don't know which
category to choose, so I sticked with Dolphin as it is at least involved in the
process.

SUMMARY

When I plug in a USB drive (USB 3.0) I get a notification about it in the
system tray (small USB icon to the bottom right).

In there I can choose to "Open with File Manager" which will successfully open
the respective drive in Dolphin. At the same time though the notification
window starts hopping from being open on my left screen to being open on my
right screen periodically every ~0.5s. While doing so it is always steeling
focus from whatever other window I had selected in between.

It can be closed my clicking "safely remove device" (aka by unmounting the
stick).

Closing Dolphin doesn't seem to have an influence on the hopping.

The same behavior can be triggered by attempting to "download photos with
Gwenview".

STEPS TO REPRODUCE
1. Plug in USB
2a. Choose "Open with File Manager" from USB notification
2b. Choose "Download photos with Gwenview" from USB notification


SOFTWARE/OS VERSIONS
Operating System: KDE neon 5.20
KDE Plasma Version: 5.20.1
KDE Frameworks Version: 5.75.0
Qt Version: 5.15.0
Kernel Version: 5.4.0-52-generic
OS Type: 64-bit
Processors: 8 × Intel® Core™ i7-4770 CPU @ 3.40GHz
Memory: 7,7 GiB of RAM
Graphics Processor: NVE4

ADDITIONAL INFORMATION
- I am using a dual monitor setup (2x 1920x1080) with "extend to the left"
option.
- It doesn't matter which monitor I access the notification
- I have experienced a UI freeze shortly after removing the USB drive while the
hopping still occured. The freeze happened a bit delayed though (a couple of
minutes) so I am not 100% sure this is related. It happened more than once
though
- My USB actually has 4 partitions on it:
  1. NTFS (7.8 GB)
  2. ext4 (31 GB)
  3. Fat32 (Linux live image, 5 GB)
  4. Unallocated: 14 GB

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