My situation is a bit different. Because it seems like apm -S just blanks the screen, and pressing the power button shuts down the system immediately (of course, I get fsck on bootup, etc).
If I enter apm -z, the system looks like really suspending, i.e. screen blanks, the system spends some time and finally shuts itself down, and power led starts to blink as it should (this sequence of events is exactly the same on Windows or Linux on the same laptop). But after that I cannot wake it up. Pressing the power button does not do anything, nor do the other buttons. In fact, I have to unplug the system to wake it up (my battery died years ago). And when it wakes up it behaves like I did apm -S instead with blank screen, no boot-up bios strings at all (thus, go to first paragraph to see what happens). Since it seems like apm -z works during suspending (?), I am hopeful. It's like while suspending the bios should be instructed as to which button-press (or event) to wake up with. I don't know how apmd/apm works/suspends, but can I fix this issue somehow? Any hope? I am willing to test/implement. Btw, halt -p works without powerdown hack in sysctl.conf, and apmd otherwise seems to be running fine in cool running mode, it adjusts the CPU speed according to load, etc. So I am really hopeful. Here is my dmesg: OpenBSD 4.2 (GENERIC) #375: Tue Aug 28 10:38:44 MDT 2007 [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC cpu0: Mobile Intel(R) Pentium(R) 4 - M CPU 1.80GHz ("GenuineIntel" 686-class) 1.80 GHz cpu0: FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,CNXT-ID real mem = 535846912 (511MB) avail mem = 510488576 (486MB) mainbus0 at root bios0 at mainbus0: AT/286+ BIOS, date 10/15/02, BIOS32 rev. 0 @ 0xfd880, SMBIOS rev. 2.31 @ 0xd8010 (37 entries) bios0: vendor vpr Matrix, Inc. version "03AB" date 10/15/02XX bios0: vpr Matrix, Inc. 120-180B5 apm0 at bios0: Power Management spec V1.2 apm0: AC on, battery charge unknown apm0: flags 30102 dobusy 0 doidle 1 pcibios0 at bios0: rev 2.1 @ 0xfd880/0x780 pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfdf40/160 (8 entries) pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82371FB ISA" rev 0x00) pcibios0: PCI bus #4 is the last bus bios0: ROM list: 0xc0000/0x10000 0xd0000/0x4000 0xd8000/0x4000! 0xdc000/0x4000! cpu0 at mainbus0 pci0 at mainbus0 bus 0: configuration mode 1 (no bios) pchb0 at pci0 dev 0 function 0 "Intel 82845 Host" rev 0x04 ppb0 at pci0 dev 1 function 0 "Intel 82845 AGP" rev 0x04 pci1 at ppb0 bus 1 vga1 at pci1 dev 0 function 0 "ATI Radeon Mobility M7 LW" rev 0x00 wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) wsdisplay0: screen 1-5 added (80x25, vt100 emulation) uhci0 at pci0 dev 29 function 0 "Intel 82801CA/CAM USB" rev 0x02: irq 11 uhci1 at pci0 dev 29 function 1 "Intel 82801CA/CAM USB" rev 0x02: irq 11 uhci2 at pci0 dev 29 function 2 "Intel 82801CA/CAM USB" rev 0x02: irq 10 ppb1 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0x42 pci2 at ppb1 bus 2 cbb0 at pci2 dev 3 function 0 "Ricoh 5C475 CardBus" rev 0xb8: irq 11 "Ricoh 5C551 Firewire" rev 0x00 at pci2 dev 3 function 1 not configured cbb1 at pci2 dev 7 function 0 "TI PCI1410 CardBus" rev 0x01: irq 11 fxp0 at pci2 dev 8 function 0 "Intel PRO/100 VE" rev 0x42, i82562: irq 10, address 00:00:f0:76:85:9e inphy0 at fxp0 phy 1: i82562ET 10/100 PHY, rev. 0 cardslot0 at cbb0 slot 0 flags 0 cardbus0 at cardslot0: bus 3 device 0 cacheline 0x0, lattimer 0x20 pcmcia0 at cardslot0 cardslot1 at cbb1 slot 1 flags 0 cardbus1 at cardslot1: bus 4 device 0 cacheline 0x0, lattimer 0x20 pcmcia1 at cardslot1 ichpcib0 at pci0 dev 31 function 0 "Intel 82801CAM LPC" rev 0x02: 24-bit timer at 3579545Hz: SpeedStep pciide0 at pci0 dev 31 function 1 "Intel 82801CAM IDE" rev 0x02: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility wd0 at pciide0 channel 0 drive 0: <SAMSUNG MP0804H> wd0: 16-sector PIO, LBA48, 76351MB, 156368016 sectors wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5 atapiscsi0 at pciide0 channel 1 drive 0 scsibus0 at atapiscsi0: 2 targets cd0 at scsibus0 targ 0 lun 0: <SAMSUNG, CDRW/DVD SN-308B, U021> SCSI0 5/cdrom removable cd0(pciide0:1:0): using PIO mode 4, DMA mode 2 ichiic0 at pci0 dev 31 function 3 "Intel 82801CA/CAM SMBus" rev 0x02: irq 10 iic0 at ichiic0 auich0 at pci0 dev 31 function 5 "Intel 82801CA/CAM AC97" rev 0x02: irq 10, ICH3 AC97 ac97: codec id 0x43525934 (Cirrus Logic CS4299 rev 4) ac97: codec features headphone, 20 bit DAC, 18 bit ADC, Crystal Semi 3D audio0 at auich0 "Intel 82801CA/CAM Modem" rev 0x02 at pci0 dev 31 function 6 not configured usb0 at uhci0: USB revision 1.0 uhub0 at usb0: Intel UHCI root hub, rev 1.00/1.00, addr 1 usb1 at uhci1: USB revision 1.0 uhub1 at usb1: Intel UHCI root hub, rev 1.00/1.00, addr 1 usb2 at uhci2: USB revision 1.0 uhub2 at usb2: Intel UHCI root hub, rev 1.00/1.00, addr 1 isa0 at ichpcib0 isadma0 at isa0 pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard, using wsdisplay0 pmsi0 at pckbc0 (aux slot) pckbc0: using irq 12 for aux slot wsmouse0 at pmsi0 mux 0 pcppi0 at isa0 port 0x61 midi0 at pcppi0: <PC speaker> spkr0 at pcppi0 lpt0 at isa0 port 0x378/4 irq 7 npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo fdc0 at isa0 port 0x3f0/6 irq 6 drq 2 biomask ef6d netmask ef6d ttymask ffef pctr: user-level cycle counter enabled mtrr: Pentium Pro MTRR support wi0 at pcmcia1 function 0 "Lucent Technologies, WaveLAN/IEEE, Version 01.01" port 0xa000/64 wi0: Firmware 8.10 variant 1, address 00:02:2d:70:48:ad dkcsum: wd0 matches BIOS drive 0x80 root on wd0a swap on wd0b dump on wd0b auich0: measured ac97 link rate at 47992 Hz, will use 48000 Hz