Re: Squeeze. What is current hibernation mechanism?

On Thu, Sep 23, 2010 at 8:11 PM, Camaleón <noelamac@xxxxxxxxx> wrote:
On Thu, 23 Sep 2010 19:21:15 +0400, Mark Goldshtein wrote:

On Thu, Sep 23, 2010 at 3:54 PM, Camaleón wrote:

Hibernation and suspension are sharing the same requirements than
always:

1. ACPI compilant machine / devices
2. An OS capable to handle them (for hibernation you need a swap
partition size with at least the same amount of your RAM) 3. Testing,
testing, testing
4. A good provision of luck :-)

It is seems like I am not too good with gathering such an ephemeral
thing like a 'luck'  :(

Luck is a pretty scarce resource on these days...

About 'what is not working'.
I have a NVidia videoboard:

01:00.0 VGA compatible controller [0300]: nVidia Corporation GT216
[GeForce GT 240M] [10de:0a34] (rev a2)
      Subsystem: Lenovo Device [17aa:38fd]
      Kernel driver in use: nvidia

Which driver are you using (nouveau, nv, nvidia)? Different drivers
provide different support for resuming. Also, having 3D effects enabled
can be conflictive.

When the system goes out from a hibernation, the backlit of notebook's
screen is not back switch on, so screen is dark and it is impossible to
work. If I use a suspend-to-ram sleeping scheme everything is fine. So,
I wonder if I misconfigured something in a hibernation scheme.

There is a way for blacklisting problematic modules (meaning "disallow
them for hibernating"). Each power manager method (pm-utils, uwusup and
hibernate) uses theirown scripts for disabling/backlisting the modules.

I would recommend reading this FAQ to get a global idea about the
elements that come into play:

http://wiki.debian.org/Suspend

And also, this:

http://old-en.opensuse.org/Pm-utils

Where it explains some tips to debug "pm-utils" and how to disable/
customize your own hooks.


Thank you very much for your time and detailed explanation.

--

Sincerely Yours'
Mark Goldshtein


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