[olpc-nz] Testing summary - 12 December 2009 Wellington, NZ

Gary C Martin gary at garycmartin.com
Mon Dec 14 16:39:17 EST 2009

On 14 Dec 2009, at 19:54, Alastair Munro wrote:

> Hi Cameron,
> I checked a couple of the laptops after seeing your email about the suspending, the wifi disappearing was after a suspend. I was thinking of suspend in the terms of a normal laptop where suspending effectively turns off the computer and saves state to the hard disk. I find it odd that the suspend is still allowed to occur even when running off AC power though.

I think the idea is that power is precious in the majority of deployments (if not all of us). Burning cycles on a diesel generator, wind turbine, or solar is detrimental to every other device plugged into that limited power source.


>  -Alastair
> On Mon, Dec 14, 2009 at 1:13 PM, James Cameron <quozl at laptop.org> wrote:
> G'day Alastair,
> Thanks for responding.  I'd like to drill down further into the facts
> just to make sure we're not missing anything.
> On Mon, Dec 14, 2009 at 09:19:19AM +1300, Alastair Munro wrote:
> > We did not disable suspend before testing, all these observations were
> > made on a fresh boot while plugged into AC power with no suspending.
> You did not disable suspend, yet there was no suspending at all?  That's
> surprising.  The design since about build os49 is that dim screen with
> begin at about 15 seconds and suspend will begin at about 25 seconds of
> idle.  The suspend doesn't turn off the screen, so you might not notice
> it.  The power LED begins to blink at about a five second rate.
> Can you confirm that you keep the keyboard and touchpad active, and
> never idle for more than 30 seconds?  It is very hard to do that,
> especially with other people interrupting.
> > The wireless just didn't seem to activate at all. When checking
> > 'ifconfig -a' the only device shown was the local loopback device
> > 'lo'.
> This is quite consistent with not knowing that an automatic idle suspend
> has happened.
> --
> James Cameron
> http://quozl.linux.org.au/
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