[IPython-dev] qtconsole give heartbeat warning when waking from sleep on OS X 10.8

Erik Tollerud erik.tollerud at gmail.com
Thu Dec 6 10:58:00 EST 2012

I've been using the qtconsole for a while now, and I've noticed an
annoying behavior that seems to consistently occur now on the latest
Mac OS X (10.8): When I wake my computer from sleep (usually after a
*long* sleep like overnight), any qtconsole windows pop up the dialog
indicating that "The kernel heartbeat has been inactive for 3.00
seconds. Do you want to restart the kernel?" If I choose "no",
everything works just fine, so the kernel is actually running fine.
Any idea why this is happening?  (Note that it did *not* happen on OS
X 10.7)

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