Review Request 125961: [declarative/core] Use BypassWindowManagerHint only on platform X11

[Marco Martin]

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Ship it!


good as short term, but would love apps not suiciding when that flag is set. would need a fix in qtwayland i guess

- Marco Martin


On Nov. 5, 2015, 3:38 p.m., Martin Gräßlin wrote:
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> https://git.reviewboard.kde.org/r/125961/
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> (Updated Nov. 5, 2015, 3:38 p.m.)
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> 
> Review request for KDE Frameworks and Plasma.
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> Repository: plasma-framework
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> Description
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> BypassWindowManagerHint is a flag which is X11 specific. Because of
> that for example QtWayland doesn't create a real window for QWindows
> with this flag.
> 
> Using such a window will eventually result in a freeze of the whole
> application. If one renders with QtQuick to such a window, mesa will
> request a frame callback from the compositor. Just the compositor
> will never deliver the frame rendered callback as it doesn't know the
> window exists in the first place and by that doesn't render it and
> will never ever deliver the frame rendered callback.
> 
> If now one tries to render another frame, mesa notices that it hasn't
> got the frame callback and will block the thread till that happens.
> With the setup described: that's until eternity.
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> Change-Id: I352ff788f90799ce0e0a5de53d5d34c02c8468c3
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> 
> Diffs
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>   src/declarativeimports/core/CMakeLists.txt 4e0fe8bf95d51c282060a0a05914c976cd4e5783 
>   src/declarativeimports/core/config-x11.h.cmake PRE-CREATION 
>   src/declarativeimports/core/tooltipdialog.cpp 121ccf91bb17c5dd17e0742831830186e9e44a1e 
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> Diff: https://git.reviewboard.kde.org/r/125961/diff/
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> Testing
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> Thanks,
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> Martin Gräßlin
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>

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