[KScreen] [Bug 360430] kscreen randomly rewrites screen configuration

[Nate Graham]

https://bugs.kde.org/show_bug.cgi?id=360430

Nate Graham  changed:

   What|Removed |Added

 Resolution|--- |FIXED
 Status|REPORTED|RESOLVED
 CC||n...@kde.org

--- Comment #8 from Nate Graham  ---
Thanks for following up!

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[KScreen] [Bug 360430] kscreen randomly rewrites screen configuration

[Bernd Steinhauser]

https://bugs.kde.org/show_bug.cgi?id=360430

--- Comment #7 from Bernd Steinhauser  ---
I didn't have this anymore for quite some time, so might close this as resolved
(one way or another).

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[KScreen] [Bug 360430] kscreen randomly rewrites screen configuration

[Jimmy Berry via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=360430

Jimmy Berry  changed:

   What|Removed |Added

 CC||ji...@boombatower.com

--- Comment #6 from Jimmy Berry  ---
Not sure if related although it seems likely, but my 3 screen config seems to
be lost each login (since qt 5.6) and is a joke to setup again with kscreen5.
Video demonstration: https://www.youtube.com/watch?v=GWC_SrE9cco.

Let me know if I should file separate bug.

My 3 screens are correct at login manager, but on login the left and right
(identical screens) are cloned and center screen is disabled.

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[KScreen] [Bug 360430] kscreen randomly rewrites screen configuration

[Christoph via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=360430

Christoph  changed:

   What|Removed |Added

 CC||w...@psitrax.de

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[KScreen] [Bug 360430] kscreen randomly rewrites screen configuration

[Bernd Steinhauser via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=360430

--- Comment #5 from Bernd Steinhauser  ---
As I don't see this every time, I guess there is a race going on.

To me, it looks like kscreen tries to look for a config, when some daemon or
backend is sometimes not available to retrieve the config (e.g. kded or
kdeinit).
Then it tries a best guess at the screen config and writes that config to disk
(at that time, the backend/daemon/whatever would be available, because it
happens a bit later).

Since I'm not good at understanding c++ and since I don't know kscreen in
detail, that's just speculation.
However, I remember from times where loading a config was successful, that
there are lines in the log telling you that it found a config and tries to
apply that.
When the config gets rewritten, I can't find such lines in the log, but there
aren't logs about something failing either. Other than the lines about some
xrandr, but iirc that's normal (since there are multiple ones).

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[KScreen] [Bug 360430] kscreen randomly rewrites screen configuration

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=360430

--- Comment #4 from lutz.wr...@gmail.com ---
With icrond's logging I was hoping to see a pattern when this occurs, but I
couldn't find anything. It seems more or less random.

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[KScreen] [Bug 360430] kscreen randomly rewrites screen configuration

[Bernd Steinhauser via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=360430

--- Comment #3 from Bernd Steinhauser  ---
It's easier to remove write access to the file, but that still does not solve
the problem at all.

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[KScreen] [Bug 360430] kscreen randomly rewrites screen configuration

[via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=360430

lutz.wr...@gmail.com changed:

   What|Removed |Added

 CC||lutz.wr...@gmail.com

--- Comment #2 from lutz.wr...@gmail.com ---
I have a similar problem with a configuration for laptop screen plus external
monitor. The offset of the laptop screen should be (1920, 2160) but is
sometimes reset to (0,0). I've seen this with all plasma 5.x.y versions that
I've used so far.
As a workaround I use incrond to run a script that restores the kscreen
configuration file whenever it changes.

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[KScreen] [Bug 360430] kscreen randomly rewrites screen configuration

[Bernd Steinhauser via KDE Bugzilla]

https://bugs.kde.org/show_bug.cgi?id=360430

--- Comment #1 from Bernd Steinhauser  ---
Created attachment 97851
  --> https://bugs.kde.org/attachment.cgi?id=97851=edit
screen configuration

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