Date: Sat, 18 Mar 2006 19:53:17 +0100
From: Richard Mittendorfer <[EMAIL PROTECTED]>
Subject: Re: [LIB] stanby/hibernate kernel 2.6.14

Also sprach Jose Tavares <[EMAIL PROTECTED]> (Sat, 18 Mar 2006 09:03:39
-0800):
> On Fri, 2006-02-03 at 09:46 -0800, [EMAIL PROTECTED] wrote:
> > 
> > I'm running vesa now. actually runs like junk on mine, for some
> > reason,  andI can't even get the intel one to work. sucks. but not a
> > big issue  since I don't really use standby anyway just hibernate
> > and I can always  get that too work. u100 uses about 2 times too
> > much power anyway so I  don't loose anything. whith the chips
> > toshiba uses it should only use  about 400mAh but it uses 800.
> 
> Reactivating this thread now that I bought mine and installed
> debian.. :)
> Which software are you using for hibernation?
> I installed "hibernate" and "powersave"..
> No success with both of them.. W

s4bios (the biosmode to suspend to the hibernation area) is gone in
later kernels. AFAIK it should be possible to use suspend2 as swsusp(in
kernel tree) isn't able to free the needed memory(RAM) if there's too
little free. Anyway, it works if very little memory is used (plain X).
suspend2 will try harder to get it freed, but I can't confirm: I just
use STR as it saves power quite well for my need. YMMV.

With a few tweaks to the in-kernel swsusp code it should be possible to
tune this also.
 
> ith powersave I can control
> throttling, and see cpu, battery and temperature status..

Can you give my some information about your thermal sensor? What's
exportet under /proc/acpi/thermal..? I can't get any (accurate)
temperatures from my libretto. E.g. it get's read out with a reasonable
value at boot once, but won't get updated.

> Seems like I have to tune something for powersaved to work with
> hibernation..
> I reached nowhere with "hibernate" and I removed it a few minutes
> later to install powersaved ..

hibernate is the debian script to use suspend2.
$ apt-cache show hibernate

To get suspend2 see [1] or archck at [2], there may/should be a debian
package for this patch already in debian.  
 
[1] http://www.suspend2.net
[2] http://iphitus.loudas.com/

> Comments?
> 
> []
> JA Tavares

sl ritch


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