https://bugs.kde.org/show_bug.cgi?id=354437

--- Comment #6 from Thiago Macieira <thi...@kde.org> ---
(In reply to Maciej Mrozowski from comment #4)
> Remember multi-monitor config is minor problem here, detecting screens
> whenever they change is more pressing. kscreen somewhat cannot catch up with
> output device hot-plug events. I noticed runnig 'xrandr' tool (without
> arguments, just in console) actally triggers kscreen to get notified about
> monitors being reconnected (otherwise hot-plug events seem to be ignored in
> my case). I heard someone blaming Qt for that..

That used to happen with KDE 4 kscreen too and is not its fault. Running xrandr
without arguments causes the video driver (i915, usually) to re-scan the
outputs and thus find that you've connected something. It shouldn't be and
isn't needed. It's not kscreen's fault and it should not cause frequent
polling.

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