Re: ACPI S3 resume only reboots

[Alberto <albeclemit-whZMOeQn8C0@public.gmane.org>]

Hi everybody,

i really need to fix this issue... i found in the archives and out in the net some references to this problem, that seems to be related to the VIA KT400 chipset, but no interesting follow-up was in the archive.
I'm trying to suspento to ram from init 1, with all external devices unplugged and all modules unloaded. Seems to suspend fine, but wakeup generates a reboot.
Again, how could i try to understand what's going on if the machine just reboots?

Thanks,
Alberto

# lspci
0000:00:00.0 Host bridge: VIA Technologies, Inc. VT8377 [KT400/KT600 AGP] Host Bridge (rev 80)
0000:00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI Bridge
0000:00:09.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 80)
0000:00:0b.0 CardBus bridge: O2 Micro, Inc. OZ6912 Cardbus Controller (rev 20)
0000:00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
0000:00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
0000:00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80)
0000:00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82)
0000:00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge
0000:00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
0000:00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 50)
0000:00:11.6 Communication controller: VIA Technologies, Inc. Intel 537 [AC97 Modem] (rev 80)
0000:00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 74)
0000:01:00.0 VGA compatible controller: ATI Technologies Inc Radeon R250 Lf [Radeon Mobility 9000 M9] (rev 01)

> > > When i do
> > > cat -n "mem" > /sys/power/state
> > > the system seems to go down fine in S3 state...
> > > when i hit the power button it looks like trying to resume (fan starts again, noises from harddisk and cdrom) then it just reboots....
> > 
> > Do you have a /proc/acpi/wakeup_devices ? If so, what's in it?
> 
> Yes i have a /proc/acpi/wakeup
> 
> $ cat /proc/acpi/wakeup
> Device  Sleep state     Status
> PCI0       4            disabled
> USB1       0            disabled
> USB2       0            disabled
> USB3       0            disabled
> EHCI       0            disabled
>  EC0       4            disabled
>  LID       4            *enabled
>  AC9       4            disabled
>  MC9       4            disabled
> ILAN       4            disabled
> SLPB       4            *enabled
> 
> Pressing the lid button to simulate lid opening happens the same as above...


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