F8: Thinkpad T61 wakes up at random after hibernating

Matthew Saltzman mjs at clemson.edu
Sat Mar 29 18:38:41 UTC 2008


On Sat, 2008-03-29 at 09:23 -0700, Globe Trotter wrote:
> --- Matthew Saltzman <mjs at clemson.edu> wrote:
> 
> > 
> > On Fri, 2008-03-28 at 08:00 -0700, Globe Trotter wrote:
> > > --- Matthew Saltzman <mjs at clemson.edu> wrote:
> > > 
> > > > 
> > > > On Thu, 2008-03-27 at 21:15 -0700, Globe Trotter wrote:
> > > > > So, I have been having this same problem (not always, but very
> > frequently),
> > > > > ever since I upgraded to 2.6.24 kernels (all three released so far).
> > > > > 
> > > > > I put my trusty Thinkpad T61 on pm-hibernate, and it goes down
> > peacefully:
> > > > > however, within a second after everything shutting down, all lights
> > off, it
> > > > > revvs up and starts all over again. Regardless of whether the lid is
> > closed
> > > > or
> > > > > open. 
> > > > > 
> > > > > This does not happen always. 
> > > > > 
> > > > > Any suggestions?
> > > > 
> > > > Hibernate?  First I've heard of it (but I haven't tried to hibernate
> > > > recently--it wasn't resuming with the nVidia driver).  The current state
> > > > of spontaneous-resume-after-suspend-to-RAM is here:
> > > > https://bugzilla.redhat.com/show_bug.cgi?id=254214.
> > > > 
> > > 
> > > thanks, matthew and frank! Not having used pm-suspend for a while, I tried
> > it,
> > > and it went down fine, but did not wake up properly. (I guess, you could
> > say in
> > > a coma?:-) but it came back with a black screen and a dash blinking
> > cursor.)
> > > Had to hard-shutdown a la Windoze (I am told). 
> > 
> > You may have to worry about "quirks":
> > http://people.freedesktop.org/~hughsient/quirk/quirk-suspend-index.html
> > > 
> > > But my reference is to pm-hibernate. I tried it three times this morning,
> > and
> > > it went down fine twice. But woke up a second later the third time. I tried
> > > shutting down firefox the first times, and left it on at
> > www.washingtonpost.com
> > > the third time. It may be firefox, it may be java, but the problem is so
> > random
> > > (Bernoulli distributed with p > 0.75) that it is hard to tell.
> > 
> > The takeaway from the BZ ticket ref above is that this may not be a
> > question of applications running, but rather drivers.  Some similar fix
> > to the one in BZ might help you.
> 
> Thanks, and you are probably right. Btw, I do not have an nvidia, but an Intel 
> GM965/GL960 Integrated Graphics Controller. 

That's OK.  The quirks thing won't help you with proprietary drivers
anyway.  And the end result of the analysis was that graphics drivers
weren't the issue anyway, USB drivers were.

> 
> It does seem strange that this entire crop of wake-up-at-random cropped up only
> after upgrades to 2.6.24.

New features in drivers can have that effect.  See many discussions in
the archives about the kernel development model and the risk that things
occasionally stop working.

> 
> Trotter

-- 
                Matthew Saltzman

Clemson University Math Sciences
mjs AT clemson DOT edu
http://www.math.clemson.edu/~mjs




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