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

Aaron Meurer asmeurer@gmail....
Thu Dec 6 13:10:27 CST 2012


What kind of computer do you have? In particular, do you have one of
the new MacBook Airs or retina MacBook Pros that support power nap?

Aaron Meurer

On Dec 6, 2012, at 8:58 AM, Erik Tollerud <erik.tollerud@gmail.com> wrote:

> 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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