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List:       kdevelop-bugs
Subject:    [Bug 284248] New: Mouse frozen for entire window manager if
From:       malcolm macleod <mmacleod () webmail ! co ! za>
Date:       2011-10-17 10:16:50
Message-ID: bug-284248-40295 () http ! bugs ! kde ! org/
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https://bugs.kde.org/show_bug.cgi?id=284248

           Summary: Mouse frozen for entire window manager if breakpoint
                    triggered in some scenarios
           Product: kdevelop
           Version: 4.2.2
          Platform: Gentoo Packages
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: CPP Debugger
        AssignedTo: kdevelop-bugs@kdevelop.org
        ReportedBy: mmacleod@webmail.co.za


Version:           4.2.2 (using KDE 4.6.5) 
OS:                Linux

If a break point triggers during a drag event (or presumably anything else that
grabs mouse focus) then the entire window manager becomes unusable.
This is likely because the program with mouse focus is "frozen" and cannot
release the focus - The only way to regain mouse usage seems to be to kill -9
the program that is being debugged.

Reproducible: Always

Steps to Reproduce:
1) Set a breakpoint that will trigger when doing something that captures the
mouse, like a drag event.
2) Perform drag event
3) Observe that it is no longer possible to manipulate the window manager with
the mouse

Actual Results:  
Ability to use mouse lost

Expected Results:  
Mouse should still be usable. I'm not sure how exactly this would be achieved,
presumably there are some challenges in doing this.

I ran into this while testing a wxGTK program - so its possible that it doesn't
happen with e.g. kdelibs programs as they might grab the mouse differently - I
suspect it will happen for both though.

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