[ltp] Suspend/resume on X61s laptops?

[Henrique de Moraes Holschuh]

On Mon, 04 Aug 2008, Jose Celestino wrote:
> Words by Henrique de Moraes Holschuh [Mon, Aug 04, 2008 at 05:33:24PM -0300]:
> > On Mon, 04 Aug 2008, Vincent C Jones wrote:
> > > As was reported awhile ago on this list, 2.6.26 broke the S3 hacks for
> > > reinitializing the video bios during resume from suspend (search for
> > > "Big Real Mode"). Happy to report this is fixed in 2.6.26.1 so my X61
> > > finally has suspend/resume, fancy blinking wireless lights, and no
> > > longer consumes almost as much energy hibernating as it does suspended.
> > 
> > Eh?!  That last one (high energy comsumption while hibernated) I haven't
> > heard about before. Did 2.6.26 have that problem and 2.6.26.1 fix it?
> 
> Oh. I didn't even know it consumed energy while hibernated, at least not
> more than if turned off.

If a X60/X61 doesn't shutdown properly, it will drain the battery dry even
if it looks like it is off.  We don't know why, and for all I know, Lenovo
fixed this in the BIOS already, but it certainly happened on shutdown
before, and I personally don't know what fixed it.

It is not supposed to use any energy at all on S5, and it is allowed to use
very little energy in S4 (platform hibernate) to allow for wake-up from
certain devices (if you enabled that).

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh