Bug 218187

Summary: okular activates screensaver through DBUS which is not set
Product: [Plasma] krunner Reporter: Hartmut <spielmops>
Component: generalAssignee: Kai Uwe Broulik <kde>
Status: RESOLVED FIXED    
Severity: wishlist CC: alexander.lohnau, caulier.gilles, larsnospam, marcel.wiesweg, rdieter
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: unspecified   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Hartmut 2009-12-10 22:23:57 UTC
Version:           0.10.0 (using 4.3.4 (KDE 4.3.4) "release 2", KDE:KDE4:STABLE:Desktop / openSUSE_11.1)
Compiler:          gcc
OS:                Linux (x86_64) release 2.6.27.37-0.1-default

My screensaver is deactivated. When I start a picture-show with Digikam/Showfoto/Gwenview the screensaver is set, when the picture-show ends. Worst: the checkbox in systemsettings is not checked. I wish that Digikam checks, if the screensaver is set and deactivates it only when the saver is set.

Hartmut
Comment 1 caulier.gilles 2009-12-10 22:28:17 UTC
This is irrelevant of digiKam. we never touch KDE screensaver settings...

Gilles Caulier
Comment 2 Hartmut 2009-12-10 23:39:53 UTC
It is fact: I have no screensaver, my computer can run days without
screensaver appearing. But if I run a pictureshow one minute after the
end of the show my sceen is black, but not black because of
monotor-sleeping - black with backlight. And we have three maschines
here - all do the same.

Hartmut

Gilles Caulier schrieb:
> https://bugs.kde.org/show_bug.cgi?id=218187
>
>
> Gilles Caulier <caulier.gilles@gmail.com> changed:
>
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>              Status|UNCONFIRMED                 |RESOLVED
>          Resolution|                            |INVALID
>
>
>
>
> --- Comment #1 from Gilles Caulier <caulier gilles gmail com>  2009-12-10 22:28:17 ---
> This is irrelevant of digiKam. we never touch KDE screensaver settings...
>
> Gilles Caulier
>
>
Comment 3 Rex Dieter 2009-12-11 00:07:58 UTC
perhaps this is the kipi-plugins Slideshow (and not digikam)?
Comment 4 Hartmut 2009-12-11 09:38:49 UTC
Rex Dieter schrieb:
> https://bugs.kde.org/show_bug.cgi?id=218187
>
>
> Rex Dieter <rdieter@math.unl.edu> changed:
>
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |rdieter@math.unl.edu
>
>
>
>
> --- Comment #3 from Rex Dieter <rdieter math unl edu>  2009-12-11 00:07:58 ---
> perhaps this is the kipi-plugins Slideshow (and not digikam)?
>
>   
Maybe, but how do I know? It's not a crash, where I can see which modul
has crashed  ...
 
Complement: it is the screensaver and nothing else, because if I if I go
to systemsettings/screensaver and "activate" it (it is activ but not
checked) and then deactivate it, the screensaver is off.

Hartmut
Comment 5 Marcel Wiesweg 2009-12-11 16:15:11 UTC
The answer to Rex' question is which slideshow you select:
From the "Slideshow" button you can choose between four different actions - All, Selection, Including subalbums, or Advanced Slideshow.
Comment 6 Hartmut 2009-12-12 23:48:23 UTC
It happens with All, Selection, Including subalbums. The advanced
slideshow crashes my x-server!

Hartmut


Marcel Wiesweg schrieb:
> https://bugs.kde.org/show_bug.cgi?id=218187
>
>
> Marcel Wiesweg <marcel.wiesweg@gmx.de> changed:
>
>            What    |Removed                     |Added
> ----------------------------------------------------------------------------
>                  CC|                            |marcel.wiesweg@gmx.de
>
>
>
>
> --- Comment #5 from Marcel Wiesweg <marcel wiesweg gmx de>  2009-12-11 16:15:11 ---
> The answer to Rex' question is which slideshow you select:
> >From the "Slideshow" button you can choose between four different actions -
> All, Selection, Including subalbums, or Advanced Slideshow.
>
>
Comment 7 Marcel Wiesweg 2009-12-16 22:31:09 UTC
Digikam uses the standard freedesktop screensaver inhibition interface via DBus. In fact, the relevant code is copied verbatim from okular. (that means, starting a presentation from a PDF in okular should give the same problem).
Comment 8 Hartmut 2009-12-16 22:46:50 UTC
Am 16.12.2009 22:31, schrieb Marcel Wiesweg:
> https://bugs.kde.org/show_bug.cgi?id=218187
>
>
>
>
>
> --- Comment #7 from Marcel Wiesweg <marcel wiesweg gmx de>  2009-12-16 22:31:09 ---
> Digikam uses the standard freedesktop screensaver inhibition interface via
> DBus. In fact, the relevant code is copied verbatim from okular. (that means,
> starting a presentation from a PDF in okular should give the same problem).
>
>   
I tried it and you are right: its the same with okular. I did not find
out earlier, because I never ever startet a presentation of PDFs ...
What do I do now? Bugreport or wish to bugs@okular?

Hartmut
Comment 9 Marcel Wiesweg 2009-12-17 19:54:12 UTC
Either the code in okular and digikam is wrong, though I dont see what could be wrong there.
Or there is a problem with the process implementing the DBus interface. For a normal KDE/Plasma desktop, that is KRunner.
Comment 10 Lars 2010-03-06 16:33:25 UTC
Here i've got the exact same problem.

I think its caused from a wrong KRunner implementation of the screensaver. Specificly screensaver/saverengine.cpp from krunner
( http://websvn.kde.org/trunk/KDE/kdebase/workspace/krunner/screensaver/saverengine.cpp ).

The code for uninhibiting doesn't check whether the screensaver is enabled altogether (line 424).
As long as an application inhibits and later uninhibits the (possibly disabled) screensaver, the screensaver gets enabled. The correct call in this line should read

enable( KScreenSaverSettings::screenSaverEnabled() )

Maybe somebody can reassign this bug to krunner ?
Comment 11 Alexander Lohnau 2020-10-16 06:03:42 UTC
The screensaver is no longer part of KRunner.