S3 won't resume correctly

S3 won't resume correctly

[Karol Kozimor]

Hi,
I'm using an Asus L3800C laptop, which itself is quite ACPI-compatible
(well, all is ok except for trivial things like C3 not supported for the
P4-M processor). I've been testing the S3 status since 2.5.59, up to
2.5.61. I use XFS for my root filesystem, which makes it inconvenient to
suspend (at least for 2.5.x, there are appropriate patches for 2.4.20), but
the problem I experience is not fs-related, i guess.

The system suspends correctly (though issuing some warnings about pagebufd
not stopping, which as I told is XFS specific), even the power LED blinks
accordingly to the manual, indicating S3. However, upon resume neither the
display, nor the keyboard works. Appending acpi_sleep=s3_bios fixes the
display, but the keyboard still won't respond. I am able to ssh to the box
after resume and everything except the keyboard seems to work fine then.

System details: P4-M 1.7 GHz, 256 MB RAM, i845 (Brookdale) chipset, ATI M7
(Radeon 7500 Mobility) video, RTL-8139 NIC, other usual notebook stuff.
I attach the log of the suspend event (though I doubt it will be of any
use), lspci -v output. My disassembled dsdt is here:
hell.org.pl/~sziwan/asus/dsdt.dsl
I'll be happy to provide further info if needed. Thanks in advance,
Best regards,

-- 
Karol 'sziwan' Kozimor
sziwan-DETuoxkZsSqrDJvtcaxF/A@public.gmane.org


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Re: S3 won't resume correctly

[Pavel Machek]

Hi!

> I'm using an Asus L3800C laptop, which itself is quite ACPI-compatible
> (well, all is ok except for trivial things like C3 not supported for the
> P4-M processor). I've been testing the S3 status since 2.5.59, up to
> 2.5.61. I use XFS for my root filesystem, which makes it inconvenient to
> suspend (at least for 2.5.x, there are appropriate patches for 2.4.20), but
> the problem I experience is not fs-related, i guess.
> 
> The system suspends correctly (though issuing some warnings about pagebufd
> not stopping, which as I told is XFS specific), even the power LED blinks
> accordingly to the manual, indicating S3. However, upon resume neither the
> display, nor the keyboard works. Appending acpi_sleep=s3_bios fixes the
> display, but the keyboard still won't respond. I am able to ssh to the box
> after resume and everything except the keyboard seems to work fine
> then.

Well, that's not that bad, all you need is an driver support for
keyboard to kick it back to live ;-). You might want to setleds +num
or something like that.
								Pavel
-- 
Casualities in World Trade Center: ~3k dead inside the building,
cryptography in U.S.A. and free speech in Czech Republic.


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Re: S3 won't resume correctly

[Karol Kozimor]

Thus wrote Pavel Machek:
> > The system suspends correctly (though issuing some warnings about pagebufd
> > not stopping, which as I told is XFS specific), even the power LED blinks
> > accordingly to the manual, indicating S3. However, upon resume neither the
> > display, nor the keyboard works. Appending acpi_sleep=s3_bios fixes the
> > display, but the keyboard still won't respond. I am able to ssh to the box
> > after resume and everything except the keyboard seems to work fine
> > then.
> Well, that's not that bad, all you need is an driver support for
> keyboard to kick it back to live ;-). You might want to setleds +num
> or something like that.

I found out that reloading atkbd.ko remotely over an ssh session returns
the keyboard back to normal. What is left:
o the fan seems to turn like wild after resume (echo 0 >
  /proc/acpi/CFAN/state does nothing) -- no, it isn't due to the
  temperature nor system load
o DMA must bu turned off for S3 resume (strange, it works with S4 in 2.4.x)
o kernel finds crond and acpid disturbing, and refuses to suspend while
  those are running

I might not have time to try and fix it by myself right now, so I'm
basically notifying you about these problems. Thanks for the support,
Best regards,

-- 
Karol 'sziwan' Kozimor
sziwan-DETuoxkZsSqrDJvtcaxF/A@public.gmane.org


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