APM, ACPI and shutting down

Hi there,

I hope I'm posting to the right list - I'm attempting to get my Linux machine 
to shut down cleanly when I press the (ATX) power button. Previously I had a 
2.2 kernel installation, and I used the powerswitch kernel module to do this; 
it apparently intercepted the APM SUSPEND event and then called shutdown -h 
now. Unfortunately this 3rd-party module is only for 2.2 and seems to have 
vanished in any case. It seems that with my new 2.4.23 setup I can't get 
Linux to produce any events when the power button is pressed, let alone get 
it to shut down at that time.

Firstly I tried using APM and apmd. Both the kernel and apmd seem to load 
fine, but nothing happens when I press the power button. I added a line to 
the /etc/apm/apmd_proxy script and confirmed it wasn't being called. I also 
added apm=debug to the kernel command line (I have apm compiled in), which 
was recognised by the kernel but didn't result in any messages being produced 
when I pressed the button. 

Then someone suggested I try ACPI. Previously I had ignored it as the kernel 
reports that my BIOS's ACPI implementation is too old (BIOS is from 2000) and 
refuses to load. However I tried the acpi=force option and got the following 
results from dmesg:

------- snip -------
Linux version 2.4.23 (root@xp2000) (gcc version 3.2.3 20030422 (Gentoo Linux 
1.4 
  3.2.3-r3, propolice)) #1 Wed Jan 7 18:15:06 NZDT 2004 
 BIOS-provided physical RAM map: 
  BIOS-e820: 0000000000000000 - 00000000000a0000 (usable) 
  BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) 
  BIOS-e820: 0000000000100000 - 0000000003ff0000 (usable) 
  BIOS-e820: 0000000003ff0000 - 0000000003ff3000 (ACPI NVS) 
  BIOS-e820: 0000000003ff3000 - 0000000004000000 (ACPI data) 
  BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved) 
 63MB LOWMEM available. 
 ACPI: have wakeup address 0xc0001000 
 On node 0 totalpages: 16368 
 zone(0): 4096 pages. 
 zone(1): 12272 pages. 
 zone(2): 0 pages. 
 ACPI: RSDP (v000 Jetway                                    ) @ 0x000f7470 
 ACPI: RSDT (v001 Jetway AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x03ff3000 
 ACPI: FADT (v001 Jetway AWRDACPI 0x42302e31 AWRD 0x00000000) @ 0x03ff3040 
 ACPI: DSDT (v001 JETWAY AWRDACPI 0x00001000 MSFT 0x0100000c) @ 0x00000000 
 Kernel command line: root=/dev/hda5 acpi=force 
 No local APIC present or hardware disabled 
 Initializing CPU#0 
 Console: colour VGA+ 80x25 
 Calibrating delay loop... 149.50 BogoMIPS 
 Memory: 61192k/65472k available (2025k kernel code, 3896k reserved, 726k 
data, 1 
 12k init, 0k highmem) 
 Checking if this processor honours the WP bit even in supervisor mode... Ok. 
 Dentry cache hash table entries: 8192 (order: 4, 65536 bytes) 
 Inode cache hash table entries: 4096 (order: 3, 32768 bytes) 
 Mount cache hash table entries: 512 (order: 0, 4096 bytes) 
 Buffer cache hash table entries: 1024 (order: 0, 4096 bytes) 
 Page-cache hash table entries: 16384 (order: 4, 65536 bytes) 
 CPU:     After generic, caps: 00000001 00000000 00000000 00000004 
 CPU:             Common caps: 00000001 00000000 00000000 00000004 
 CPU: Cyrix 6x86 2x Core/Bus Clock stepping 07 
 Checking 'hlt' instruction... OK. 
 POSIX conformance testing by UNIFIX 
 mtrr: v1.40 (20010327) Richard Gooch ([email protected]) 
 mtrr: detected mtrr type: Cyrix ARR 
 ACPI: Subsystem revision 20031002 
 PCI: PCI BIOS revision 2.10 entry at 0xfb4b0, last bus=1 
 PCI: Using configuration type 1 
  tbxface-0117 [03] acpi_load_tables      : ACPI Tables successfully acquired 
 Parsing all Control 
Methods:.................................................... 
 ......... 
 Table [DSDT](id F004) - 282 Objects with 27 Devices 61 Methods 18 Regions 
 ACPI Namespace successfully loaded at root c03e59bc 
 ACPI: IRQ9 SCI: Level Trigger. 
 evxfevnt-0089: *** Error: Could not transition to ACPI mode. 
  utxface-0170 [03] acpi_enable_subsystem : acpi_enable failed. 
 ACPI: Unable to start the ACPI Interpreter 
 evxfevnt-0127 [06] acpi_disable          : System is already in legacy 
(non-ACPI 
 ) mode 
  utalloc-0986 [05] ut_dump_allocations   : No outstanding allocations. 
 PCI: Probing PCI hardware 
 PCI: ACPI tables contain no PCI IRQ routing entries 
 PCI: Probing PCI hardware (bus 00) 
 PCI: Using IRQ router ALI [10b9/1533] at 00:07.0 
 PCI: Found IRQ 11 for device 00:02.0 
 isapnp: Scanning for PnP cards... 
 isapnp: No Plug & Play device found 
 Linux NET4.0 for Linux 2.4 
 Based upon Swansea University Computer Society NET3.039 
 Initializing RT netlink socket 
 apm: BIOS version 1.2 Flags 0x07 (Driver version 1.16) 
------- snip -------

I've tried playing with some of the settings in the BIOS but nothing seems to 
have helped with either APM or ACPI. The machine is a Cyrix 6x86 (i586) on a 
Jetway J-542B Socket 7 motherboard. It's old, but in theory I should be able 
to get this to work as the old powerswitch module had no trouble picking up 
the APM SUSPEND signal. I would try the 2.6 kernel, however my satellite card 
for internet acces requires the use of a binary-only module and it is only 
compatible with 2.4 (I have booted without loading it and verified that it is 
not causing the problem).

In case it is relevant, I am using Gentoo Linux. The version of apmd I was 
trying was 3.0.2.

Any help here would be greatly appreciated.

Cheers,
Paul


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