[ltp] Unable to revive from suspend to disk

[Tino Keitel]

On Thu, May 26, 2005 at 11:49:25 -0300, Hugo Santiago Carrer wrote:
> Hi there
> 
> I finalliy got my used T23. I have Debian (Sarge) on it with a 2.6.8
> kernel. Im still struggling with acpi and suspend to disk.
> 
>  I have added the resume=/dev/hda3 kernel option to the kernel line
> above, and when I do
> 
> echo disk >/sys/power/state
> 
> It goes into hibernation but when I poweron again it doesn't recover,
> instead it boots up as if nothing happend except that I get the
> following line in dmesg
> 
> Unable to find swap-space signature
> Adding 498952k swap on /dev/hda3.  Priority:-1 extents:1
> 
> The first line only appears after a hibernation attempt, it looks like
> the hibernation breaks something in the swap partition or something.
> 
> Any Ideas?

Did you check the kernel logs for messages regardung software suspend?
I only used swsusp2 (http://suspend2.net) but reading the documentation
in Documentation/power/swsusp.txt from the kernel source, it seems like
all drivers needed for resume must be loaded when swsusp is
initialized, which might not be the case if you use an initrd, like
it's done by Debian Sarge kernels.

Btw., I use kernel 2.6.11.8 and swsusp2 2.1.8.7 on my T23 and it works
like a charm.

Regards,
Tino