Status of multi-monitor support

[Guillaume Pothier]

2008/10/8 Aaron J. Seigo <aseigo at kde.org>:
>> On the other hand, the shell does not react well to configuration
>> changes. It is necessary to restart plasma when a monitor is
>> added/removed.
>
> there is code to handle this, actually. but we've never had the signals to
> actually test it and so it's sort of rotted out. see PlasmaApp::adjustSize in
> workspace/plasma/shells/desktop/plasmaapp.cpp ..

Yes, it seems signals indeed are part the problem here. adjustSize is
called in response to a signal in QDesktopWidget, which is, as Aike
pointed out before, pre randr-1.2 stuff. The issue is that the
argument to the signal is not really what is expected by adjustSize.
I guess the right thing to do would be to listen to kephal signals
instead of QDesktopWidget ones? How would communication work in that
case? dbus?
Anyway, I'll re-apply the workaround patch I sent before, to see if it
is still useful (it reconfigured all the screens instead of
reconfiguring only one when adjustSize was called). If it works, it
might be a good idea to include it until a kephal is moved out of
playground.

Cheers,
g

>
> you should find this:
>
>        //TODO: we have a screen that has changed, but no view.
>        //      perhaps we should make one.
>
> ;)
>
>> Aike told me Seli is working on that.
>
> Seli is working on plasma? or just working on making kwin not interfere with
> screen change announcements?
>
> --
> Aaron J. Seigo
> humru othro a kohnu se
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>
> KDE core developer sponsored by Qt Software
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