[Qt-interest] UI Interaction Freezing when using QGraphicsView - How to Debug?

[william.crocker at analog.com]

> 
> Thanks - but I tried that. Since the whole system UI freezes (I mean 
> everything), the debugger (gdb in a konsole) doesn't even respond to 
> Ctrl+C at the time to break in. By the time it response to Ctrl+C, the 
> freeze is over, and it just stops at some point deep in libGLcore.so.
> 

Run in a debugger on machine A, but display on machine B.
When the UI freezes on machine B you will still
be able to interact with the debugger running on machine A
and see where all of the threads are.

Profile the code and see if you get any hints from that.

If it really freezes and CPU usage goes to zero,
could this be a hardware/device-driver problem.

Bill