Re: (fwd) Re: powerd on XO-1 (was Re: New release ... OS13 )
hi yioryos --
thanks for the detailed descriptions.
debugging and drawing conclusions about suspend/resume
problems is pretty hard without a serial connection. i'll
try and stress an OS13 a little more, and see if i can't
reproduce your symptoms. others with serial ports are
welcome/encouraged to try as well. ;-)
paul
yioryos wrote:
Well, my predicament with powerd and a proper ticket filling
is that I can get no logs. So I'll describe the story instead
...:-)
Test settings SLEEP=15 DIM=30 BLANK=45 running on battery.
os13 (clean). XO-1 CL1 Firmware q2e42d(not overclocked, no
SDcard or anything attached to it)
Without trace-on the XO will sleep and will _not_ dim or
blank. On slight touchpad touch after the timeouts (or
spontaneous if you let it long enough) will wake to dim and
then blank. Power button wakes it up fine but no trace log.
okay -- this is definitely a kernel issue then. i think i thought
we'd gotten past all the bad ones, but i guess not.
With trace-on, same behavior but on slight touch of the
touchpad (or spontaneously) will wake to dim and freeze there.
After hard reboot no trace log either :( and no I do not have
a serial port adapter) It's a clue though (I hope)
hard freezes are certainly harder to diagnose.
If while at sleep, pass dim or blank time points, you wake it
up by typing or rubbing the touchpad constantly, will wake,
dim and then recover to normal operation. This is where the
attached powerd.trace is coming from.
It would appear that the kernel configuration is also
relevant. With the os13 kernel I also got a freeze without
the trace-on (1 in 5 tests). With the 2010322 kernel never
(in 6 tests). Using one of my kernels patched for Aufs and
with hfsplus, sisusbvga modules and in-kernel loop enabled, I
can not get it to sleep unless both DIM and BLANK are before
SLEEP time (I could provide config diffs and trace logs if you
think it may help the issue at hand)
>
> paul
>
>
> > in DIM=180, BLANK=480, SLEEP=600. No huge power
> savings but
> > at least the build is usable.
> >
> >
> > --- On Sat, 3/27/10, Paul Fox <pgf(a)laptop.org>
> wrote:
> >
> > > From: Paul Fox <pgf(a)laptop.org>
> > > Subject: Re: (fwd) Re: powerd on XO-1 (was Re:
> New release ... OS13 )
> > > To: "Yioryos Asprobounitis" <mavrothal(a)yahoo.com>
> > > Cc: "OLPC Devel" <devel(a)lists.laptop.org>,
> "fedora-olpc-list"
> > <fedora-olpc-list(a)redhat.com>
> > > Date: Saturday, March 27, 2010, 1:26 PM
> > > yioryos wrote:
> > > > I guess the question is: is os13
> usable at this
> > > stage?
> > > > Should power management be be
> inactivated in the
> > > control panel?
> > > > Are there appropriate/recommended
> powerd.conf
> > > settings for the XO-1 at this
> > > > stage?
> > >
> > > maybe, i don't know, and i don't know.
> > >
> > > paul
> > > =---------------------
> > > paul fox, pgf(a)laptop.org
> > >
> >
> >
> >
>
> =---------------------
> paul fox, pgf(a)laptop.org
>
=---------------------
paul fox, pgf(a)laptop.org