[dolphin] [Bug 477734] New: Randomly doesn't allow to copy files to removable media and doesn't say why

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=477734

            Bug ID: 477734
           Summary: Randomly doesn't allow  to copy files to removable
                    media and doesn't say why
    Classification: Applications
           Product: dolphin
           Version: 23.08.3
          Platform: Manjaro
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: php4fan at gmail.com
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY


STEPS TO REPRODUCE

There are no steps to systematically reproduce. These are the steps I did that
led to the issue, but I have done the exact same sequence of steps thousands of
times with no issue.

This has happened to me once

1. insert an SD card into the laptop's built-in reader
2. Click in the "Disks and Devices" tray icon, find the SD card and click on
"Mount and open". This opens the SD card in Dolphin
3. From another folder in another Dolphin window, select a bunch of files, drag
them and (try to) drop them into the SD card

EXPECTED RESULT

should show a "+" cursor and allow me to drop, and then the context menu would
show up allowing me to select between "copy here" and "move here" 


OBSERVED RESULT

the cursor had a "forbidden sign" icon if I released the mouse button nothing
happened.

ADDITIONALLY:

4. Then I go back to the source folder and do Ctrl+C
5. Go to the SD card Dolphin window and do Ctrl+V to paste the files

EXPECTED RESULT:
Should copy the files. If there is any reason why the files can't be copied,
should show me an error message explaining the exact reason why the files
cannot be copied

OBSERVED RESULT

did absolutely nothing, no error message, didn't copy the files, nothing.


Then I unmounted the SD card and mounted it again, and now it works as
expected, as it always had in previous occasions.

NOTE: if this is due to the fact that, for some reason, the SD card had been
mounted in read-only mode, then that would be a bug somewhere else outside of
Dolphin (any idea where, so I can report it there?), BUT:
- When trying to paste with Ctrl+V, Nautilus should show an error message
telling me that the files can't be copied and exactly why
- When using drag and drop, the forbidden-sign icon is nice, but there should
be a way to know the reason why the files can't be copied.





SOFTWARE/OS VERSIONS
Operating System: Manjaro Linux 
KDE Plasma Version: 5.27.9
KDE Frameworks Version: 5.112.0
Qt Version: 5.15.11
Kernel Version: 6.1.62-1-MANJARO (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-1065G7 CPU @ 1.30GHz
Memory: 7.3 GiB of RAM
Graphics Processor: Mesa Intel® Iris® Plus Graphics
Manufacturer: LENOVO
Product Name: 81WE
System Version: IdeaPad 3 15IIL05

ADDITIONAL INFORMATION

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