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Re: suspend on hp nx7400

I forgot, I get a kernel crash if I don't unload ipw3945 driver before
suspend to disk. WIth suspend to ram it's not necessary.

2006/11/28, Emilio Scalise <emisca.ml@gmail.com>:
That's not a suspend2 issue.
Vanilla kernel 2.6.17 has not the support for ahci sata controller
suspend and resume. Patched kernels like the ubuntu's one has patches
to make work suspend to disk (indifferently suspend1, uswsusp or
For suspend to ram to work you need 2.6.18.*-mm* or >2.6.19-rc*. I
have not seen patches to 2.6.17 that include ahci support for suspend
to ram.

If you set in the bios the controller in standard mode, ata_piix
module will control it, and suspend to disk will work with 2.6.17
(using suspend2, uswsusp, or suspend1).

See my page http://emisca.altervista.org/nx7400 . I have wrote some
instructions to get a fully working linux system on that machine.


2006/11/27, Stefano Sabatini <stefano.sabatini-lala@poste.it>:
> On date Monday 2006-11-27 13:27:00 +0100, Alessandro Speranza, wrote:
> > Hi guys.
> > I would appreciate any help concerning the issue in subject.
> > I recently got an hp nx7400 with centrino 1.66GHz and sata disk. Despite
> > the numerous efforts I haven't yet managed to get suspend to work in any
> > way. I started with suspend2 which I used already in my previous laptop.
> > Suspension seems to work ok, but on resume, it either hangs or complains
> > about not finding the signature. I tried setting cache off with
> > hdparm -W 0 /dev/sda
> > but no luck.
> >
> > I also tried the suspend to disk and suspend to ram approach both with
> > my own 2.6.17 kernel and with debian 2.6.17 image. No luck with them
> > either. It does pretty much the same as with suspend2.
> >
> > I also tried compiling with no frame buffer or setting it to vga=0 at
> > boot time. And guess, no luck!
> >
> > Has anyone of you guys any idea?
> > I attach my latest config file. Consider that I've tried with many
> > different options on and off
> > Thanks a lot
> >       Alessandro
> >
> Hi Alessandro,
> that's a common issue with suspend2.
> You could try with the last stable kernel (2.6.18) and the last
> suspend2 patch (2.2.9), disabling all the acpi stuff (setting it
> configured as loadable modules).
> Not sure it will work anyway.
> --
> Stefano Sabatini
> Linux user number 337176 (see http://li.count.org)
> --
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