New F11 for the XO-1 build 5

[Yioryos Asprobounitis]

--- On Thu, 8/13/09, Paul Fox <pgf at laptop.org> wrote:

> From: Paul Fox <pgf at laptop.org>
> Subject: Re: New F11 for the XO-1 build 5
> To: "Yioryos Asprobounitis" <mavrothal at yahoo.com>
> Cc: "OLPC Development" <devel at lists.laptop.org>, "OLPC Testing" <testing at lists.laptop.org>, "Fedora OLPC List" <fedora-olpc-list at redhat.com>
> Date: Thursday, August 13, 2009, 5:50 PM
> hi yioryos --
> 
> yioryos wrote:
>  > 
>  > --- On Thu, 8/13/09, James Cameron <quozl at laptop.org>
> wrote:
>  > > 
>  > > rtcwake testing has shown that it needs --utc
> after the
>  > > first shutdown.
>  > > Prior to then the /etc/adjtime file is zero.
>  > > 
>  > 
>  > In my hands both time 'rtcwake -um mem -a -s 10' and
> 'time
>  > rtcwake -m mem -a -s 10' are a hit and miss. 
> '-um' is better
>  > (~50%) while without the UCT option is hardly
> 10%.  Usually
> 
> what exactly do you mean, by "50%" and "10%".  rtcwake
> doesn't
> wake at all?  wakes too soon?

Either. 10, 50% sucess means wakeup in 11-12sec

> 
>  > the first time after is invoked with the UTC
> option.  Screen
>  > blanking though within olpc-powerd, does not work if
> the XO is
>  > asleep (OK before sleeping).  I could not find
> the powerd log
>  > anywhere in /var/log or /etc/powerd.  Are the
> moved somewhere
>  > else or removed altogether because of the VM
> problem?
> 
> 
> hmm.  i think we need to step back a bit.
> 
> let's ignore powerd for now -- please disable it with:
>    # initctl stop powerd
> 
> then, let's get rid of spurious wakeups, by turning off
> most wakeup events:
>    # echo 0 >
> /sys/power/wakeup_events/all
> 
> the lid, the power button, and the RTC alarm should still
> be
> capable of waking the system at this point.
> 
> now run:
>    # rtcwake --utc -m mem -s 10
> 

As JC reported, under these conditions the XO wakes up reliably. Without the --utc option does not 
wakeup unless you use the power button, lid etc(I did not wait long enough for the timezone to match utc :)


> paul
> =---------------------
>  paul fox, pgf at laptop.org
>