Impacts of disabling Automatic Power Management

Daniel Drake dsd at
Sat Feb 11 09:24:16 EST 2012

On Thu, Feb 9, 2012 at 7:33 PM, Sridhar Dhanapalan
<sridhar at> wrote:
>> Looking for the happy middle ground that doesn't interfere with
>> collaboration.
> Emphasis on collaboration stability, but we would prefer not to have
> massive battery drain while doing so. We understand that there are
> trade-offs.

I think its hard to find a middle ground at the moment. Maybe it is
just subjective. As John Gilmore points out, we have years of
experience of applying workarounds and it hasn't brought brilliant
results. Recent workarounds have already shifted us quite
significantly to the stability side (sacrificing power savings) -
waking up on all multicast frames, apparently even ones that wouldn't
normally be sent from the hardware to the driver - but we are still
left with a (IMO) substandard experience for the field.

If you apply the collaboration workaround in question you just shift
the problem to other areas, such as presence and web browsing.

In terms of the real solution, we are making progress on some of the
issues. Slowly but surely.


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