I'm trying to debug a C++ application using GDB and the Qt Creator IDE. Every time the debugger stops on a breakpoint, Ubuntu (v 17.10) thinks the application is frozen and issues the dialog box with the warning that "{application} is not responding" with options to force quit or wait. Waiting only results in the same dialog popping up 5 seconds later. The debugger is unusable while the dialog box is open. Is there a way to disable this warning entirely in Ubuntu?

Note 1: just found this question which is very similar but with Java.

Note 2: This happens in Gnome3 but not Unity. A temporary work-around is to log in using the Unity desktop.

Note 3: It appears this has been fixed in Ubuntu 18.04 (GCC 7.3).

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    That's going to be tricky I think - if I understand the issue correctly, it's because the debugger pauses the application's event loop, preventing it from responding to the window manager's _NET_WM_PING signal. – steeldriver Mar 25 '18 at 14:12
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    I don't know if you can see the (deleted) answer to the similar question you linked, but the answerer did file a bug report <something> is not respoding window is constantly showing when debugging a program in Eclipse (AFAIK the issue is the same regardless of either the debugger or application language) that you might want to add to ("affects me too") – steeldriver Mar 25 '18 at 14:12
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    Thanks for the link; I can't see the deleted answer. This issue must be tied to some specific configuration - I would think that not being able to use a debugger would cause an outrage if it affected everyone. – Carlton Mar 25 '18 at 14:26

There is a gnome shell extension to disable the force close dialog. It isn't the best solution but it helps working around apps that "lock" the GUI.

Download this

Extract it to $HOME/.local/share/gnome-shell/extensions/disable-force-quit@fmuellner.gnome.org/

Reload Gnome with Alt+F2, r, enter (it won't kill your session / apps)

Open Tweaks, under Extensions, activate it.

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