[okular] [Bug 408640] New: 30 second delay to open windows for two okular processes that are started together

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=408640

            Bug ID: 408640
           Summary: 30 second delay to open windows for two okular
                    processes that are started together
           Product: okular
           Version: unspecified
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: okular-devel at kde.org
          Reporter: ahn567 at gmail.com
  Target Milestone: ---

SUMMARY

If two okular processes are started within about 0.01sec of one another, then
there is a delay of 30-60 sec before either okular window appears on the
screen. 

STEPS TO REPRODUCE

Enter the following command (eg. in bash),

okular f1.pdf & okular f2.pdf &

where f1.pdf  and  f2.pdf  are anything (eg. a single blank page).


OBSERVED RESULT

The corresponding windows for the two processes open (appear on the screen)
about 30--60 seconds after the processes are started.


EXPECTED RESULT

Both windows for both processes should appear "instantaneously".

The following command, which includes a short delay between starting the 
two okular processes, works as expected:

> okular f1.pdf & sleep 0.1; okular f2.pdf &


that is, the window containing f1.pdf opens instantly, and the window 
containing f2.pdf opens 0.1 sec later.


SOFTWARE/OS VERSIONS
Linux/KDE Plasma.
Okular Version 0.26.1  (up-to-date Debian-9 stretch)
KDE Platform Version 4.14.26

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