[okular] [Bug 401441] New: Post-suspend Okular shows a blank screen, not the slide

[b***@kde.org]

https://bugs.kde.org/show_bug.cgi?id=401441

Bug ID: 401441
Summary: Post-suspend Okular shows a blank screen, not the
slide
Product: okular
Version: 1.3.3
Platform: Mint (Ubuntu based)
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: okular-***@kde.org
Reporter: ***@gmail.com
Target Milestone: ---

SUMMARY

Upon resume from sleep, Ocuklar shows black space, not the slide.


STEPS TO REPRODUCE
1. Open PDF with Okular.
2. Suspend PC - possibly only when Okular is in full-screen mode.
3. Resume PC.

OBSERVED RESULT

Black screen with an Okular menu popping-up when I mouse to the top of the
screen.

EXPECTED RESULT

The slide seen pre-suspend should be visible.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Mint 19 Cinnamon x64.
Qt Version: unknown.

ADDITIONAL INFORMATION

This problem may owe to Mint or Ubuntu or even the kernel. My kernel is a 4.19
one.

[David Hurka]

https://bugs.kde.org/show_bug.cgi?id=401441

--- Comment #1 from David Hurka <***@mailbox.org> ---
When I try to suspend, my computer reboots instead... When I lock and unlock
the screen, Okular behaves as expected.

As you use the word "slide" and mention the popping-up menu: Do you mean
"Presentation Mode" instead of "Full-Screen Mode"?

[Albert Astals Cid]

https://bugs.kde.org/show_bug.cgi?id=401441

Albert Astals Cid <***@kde.org> changed:

What |Removed |Added
----------------------------------------------------------------------------
Status|REPORTED |NEEDSINFO
CC| |***@kde.org
Resolution|--- |WAITINGFORINFO

--- Comment #2 from Albert Astals Cid <***@kde.org> ---
Changing status, please answer David's question

[b***@kde.org]

https://bugs.kde.org/show_bug.cgi?id=401441

--- Comment #3 from ***@gmail.com ---
David, Albert

Yes, I mean what Okular calls 'presentation mode' (and which, it seems to me,
displays the currently viewed page of the document over the full screen).

(By the way: the keyboard shortcuts window does not maximise, which made
answering the question harder than it should have been.)

[Albert Astals Cid]

https://bugs.kde.org/show_bug.cgi?id=401441

Albert Astals Cid <***@kde.org> changed:

What |Removed |Added
----------------------------------------------------------------------------
Resolution|WAITINGFORINFO |---
Status|NEEDSINFO |REPORTED

--- Comment #4 from Albert Astals Cid <***@kde.org> ---
There's something wrong in your DE if it does not let you maximize the
configure shortcuts window Loading Image...

[b***@kde.org]

https://bugs.kde.org/show_bug.cgi?id=401441

--- Comment #5 from ***@gmail.com ---
Thanks. Indeed I do not see those buttons. Changing system themes did not help.
Still, I use the 'kvantum' theme manager (to deal with qt applications);
perhaps that has something to do with the problem.