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[Bug 400374] Re: X server freezes while the application is executing XQueryPointer

To: ubuntu-x-swat@xxxxxxxxxxxxxxxxxxx
From: Karl Tomlinson <bugs+launchpad@xxxxxxxxx>
Date: Wed, 23 Sep 2009 04:14:36 -0000
Reply-to: Bug 400374 <400374@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

gdk_display_get_window_at_pointer() (or more specifically
_gdk_windowing_window_at_pointer) grabs with XGrabServer() before calling
XQueryPointer.

The grab can be broken by switching to a virtual terminal and killing
the app using gdk_display_get_window_at_pointer (or attaching to that
process with a debugger and calling XUngrabServer(Display* display),
though I don't know if you can do that if a debugger is already
attached).

-- 
X server freezes while the application is executing XQueryPointer
https://bugs.launchpad.net/bugs/400374
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