Re: [kde] KDE Panel freezing when HDMI connected

Kevin Krammer writes:

On Sunday, 2011-09-11, Alex Schuster wrote:
Tim Edwards writes:

My theory is it looks like the Pyweather widget is hanging trying
to get data sometimes, and this in turn hangs plasma-desktop.
Which, if true, is IMHO a huge design fault in plasma-desktop.
Anyway I'll see if this theory holds out, Pyweather's been removed
and so far no freezes.

Yes, that's the problem with plasma-desktoüp, it's single threaded,
and if one plasmoid hangs, whole plasma hangs. I often had such
trouble when using plasmoids I downloaded fron the net.

I also believe it's a huge design fault, but there _are_ indeed
reasons for doing this, having to do with speed mainly I think. I
don't find the link right now where this was explained, but if you
are interested, I could search and find it.

Here it is:
http://www.freehackers.org/thomas/2009/11/10/wonders-from-a-kde-fan-and-developer-about-some-kde-design-choices/comment-page-1/#comment-7507

Retrieving data could still be done asynchronously, KDE's networking
can do that even in a single threaded application.

Sure, I didn't want to imply that was a problem.

Looks like the respective applet or whatever it is using for
downloading data is broken.

And it's bad that this is able to make plasma hang. In the days of
cooperative multitasking, every application could make your system hang -
these days are over. But for plasma, it's still like this. And it's
happened really often to me. Installing custom plasmoids often is no fun.
So I stopped doing this, and things are better now :)

Wonko
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Relevant Pages

  • Re: [kde] KDE Panel freezing when HDMI connected
    ... and this in turn hangs plasma-desktop. ... to downloading data unless something is wrong. ... And it's bad that this is able to make plasma hang. ... Sounds like a serious kernel issue of your operating system to me. ...
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  • Re: [kde] KDE Panel freezing when HDMI connected
    ... My theory is it looks like the Pyweather widget is hanging trying to ... and this in turn hangs plasma-desktop. ... if one plasmoid hangs, whole plasma hangs. ... I wonder if it depends on the design of the specific plasmoid. ...
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  • Re: [kde] KDE Panel freezing when HDMI connected
    ... shows it trying to retrieve weather data from the net. ... and this in turn hangs plasma-desktop. ... if one plasmoid hangs, whole plasma hangs. ...
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  • Re: [kde] KDE Panel freezing when HDMI connected
    ... shows it trying to retrieve weather data from the net. ... and this in turn hangs plasma-desktop. ... if one plasmoid hangs, whole plasma hangs. ...
    (KDE)