[ltp] ACPI Hibernate and Suspend Strange behavior 2.6.7/-mm1

[Sergio Vergata]

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Hi all,

I have an IBM t40P.=20
Starting testing since i got my Laptop, Now starting with 2.6.7 and -mm1 i=
=20
Switched from APM to ACPI  and use SwSusp.

Now i trying to get the system working reliable with ACPI, suspending to RA=
M=20
will not work as ist should it switch of Display Fan HDD this ist what i se=
e=20
and hear, but it will not suspend DVDRom an for sure it leave the CPU=20
powered. I see that cpu i on because the system heats itself up. The time f=
or=20
the suspended system is round about 10 hours after that the system powers o=
f=20
and the battery is empty.=20

Problem number 2 is the problem that of suspending to ram will not reawake =
the=20
interrupts of nvram and the acpi interrupts IRQ 9.=20

Now to the Suspend to Disk problem. Hibernating writes the image to disk=20
works, but only with disabled apic it poweroff the system in the right way,=
=20
with apic the Fan will not shut down don't know if something else isn't=20
poweredoff.=20

So i don't use Apic and so acpi works now after powering on the machine and=
=20
booting with acpi resume kernel all get to work again. Only sometimes, don'=
t=20
know why and in witch circumstances, the system boots the kernel and find t=
he=20
Image in Swapspace, but reading that image says that this is an corruptet=20
image and stop booting, now if I power the system whith resume=3Dnoresume t=
he=20
kernel boots up find the Image in swap (why that) and restore this found=20
image back to an running system at the last state. Strange ! After the syst=
em=20
boots everything goes back to work. Only the IRQ problem remains and=20
hibernating and resuming again will work.=20

=46inaly I have an request: could the acpi_wakeup_devices be addet to some =
patch=20
set ? Or preferable to kerneltree it self?!=20


So i hope someone will read this, and maybe report the same problems, or=20
better an hint what it could be :-)=20

CU Sergio

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Microsoft is to operating systems & security ....
             .... what McDonalds is to gourmet cooking

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