ACPI S3 suspend/resume troubleshooting

[riz%NetBSD.org@localhost]

I just picked up a new laptop, an ASUS Z54C, which is working reasonably
well for most things, but I've been having trouble getting suspend-to-RAM
working... or rather, I've had trouble with resume.  :)  I'm using the
latest netbsd-6 branch.

Leaving out all the trouble that X is likely to bring, I'm just trying
from the text console.  When I do:

sysctl -w hw.acpi.sleep.state=3

I get messages on the console about entering S3, and flushing caches, and
the laptop appears to sleep.  (the power light blinks periodically).

However, when I try to resume (by pressing the power button), the power
light, caps lock and num lock come on, but the screen (backlight) never does.
I've tried poking various things without success.

I'd be happy to do more troubleshooting, but I'm at a loss where to go
next.  Suggestions?

Below is the dmesg.

Thanks,
+j

Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
    2006, 2007, 2008, 2009, 2010, 2011, 2012
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 6.0_RC1 (GENERIC) #0: Sat Aug 25 18:07:41 PDT 2012
        riz%hackbook.lan@localhost:/usr/src/sys/arch/amd64/compile/GENERIC
total memory = 4000 MB
avail memory = 3869 MB
timecounter: Timecounters tick every 10.000 msec
timecounter: Timecounter "i8254" frequency 1193182 Hz quality 100
ASUSTeK Computer Inc. K54C (1.0       )
mainbus0 (root)
ACPI Warning: 32/64X FACS address mismatch in FADT - 
0xBAFE4E40/0x00000000BAFE4D40, using 32 (20110623/tbfadt-517)
cpu0 at mainbus0 apid 0: Intel(R) Pentium(R) CPU B960 @ 2.20GHz, id 0x206a7
cpu1 at mainbus0 apid 2: Intel(R) Pentium(R) CPU B960 @ 2.20GHz, id 0x206a7
ioapic0 at mainbus0 apid 2: pa 0xfec00000, version 20, 24 pins
acpi0 at mainbus0: Intel ACPICA 20110623
acpi0: X/RSDT: OemId <_ASUS_,Notebook,06222004>, AslId <MSFT,00010013>
acpiecdt0 at acpi0: ACPI Embedded Controller via ECDT
acpi0: SCI interrupting at int 9
timecounter: Timecounter "ACPI-Fast" frequency 3579545 Hz quality 1000
hpet0 at acpi0: high precision event timer (mem 0xfed00000-0xfed00400)
timecounter: Timecounter "hpet0" frequency 14318180 Hz quality 2000
acpiec0 at acpi0 (EC0, PNP0C09): using acpiecdt0
FWHD (INT0800) at acpi0 not configured
LDRC (PNP0C02) at acpi0 not configured
attimer1 at acpi0 (TIMR, PNP0100): io 0x40-0x43,0x50-0x53 irq 0
CWDT (INT3F0D) at acpi0 not configured
ADBG (PNP0C02) at acpi0 not configured
pckbc1 at acpi0 (PS2M, SYN0A17) (aux port): irq 12
pckbc2 at acpi0 (PS2K, PNP0303) (kbd port): io 0x60,0x64 irq 1
acpivga0 at acpi0 (GFX0): ACPI Display Adapter
acpiout0 at acpivga0 (DD01, 0x0100): ACPI Display Output Device
acpiout1 at acpivga0 (LCDD, 0x0400): ACPI Display Output Device
acpiout1: brightness levels: 20 25 30 35 40 45 50 55 65 80 100
acpiout2 at acpivga0 (DD03, 0x0300): ACPI Display Output Device
acpiout3 at acpivga0 (DD04, 0x0301): ACPI Display Output Device
acpiout4 at acpivga0 (DD05, 0x0302): ACPI Display Output Device
acpiout5 at acpivga0 (DD06, 0x0303): ACPI Display Output Device
acpiout6 at acpivga0 (DD07, 0x0304): ACPI Display Output Device
acpiout7 at acpivga0 (DD08, 0x0305): ACPI Display Output Device
acpivga0: unknown output device acpiout0
acpivga0: unknown output device acpiout2
acpivga0: unknown output device acpiout3
acpivga0: unknown output device acpiout4
acpivga0: unknown output device acpiout5
acpivga0: unknown output device acpiout6
acpivga0: unknown output device acpiout7
acpivga0: connected output devices:
acpivga0:   0x0400 (acpiout1): Unknown Output Device, head 0
PDRC (PNP0C02) at acpi0 not configured
acpiacad0 at acpi0 (AC0, ACPI0003): ACPI AC Adapter
acpibat0 at acpi0 (BAT0, PNP0C0A-0): ACPI Battery
acpibat0: ASUSTek LIon rechargeable battery
acpibat0: granularity: low->warn 0.390 Wh, warn->full 0.390 Wh
RESC (PNP0C02) at acpi0 not configured
MEM2 (PNP0C01) at acpi0 not configured
acpiwmi0 at acpi0 (ATKD, PNP0C14-ATK): ACPI WMI Interface
acpiwmibus at acpiwmi0 not configured
PTID (INT340E) at acpi0 not configured
acpilid0 at acpi0 (LID, PNP0C0D): ACPI Lid Switch
acpibut0 at acpi0 (SLPB, PNP0C0E): ACPI Sleep Button
acpitz0 at acpi0 (THRM): cpu0 cpu1
acpitz0: levels: critical 88.0 C, passive 95.0 C, passive cooling
pckbd0 at pckbc2 (kbd slot)
pckbc2: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard
pms0 at pckbc2 (aux slot)
pms0: Synaptics touchpad version 7.5
pms0: Palm detect, Multi-finger
pckbc2: using irq 12 for aux slot
wsmouse0 at pms0 mux 0
pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok
pchb0 at pci0 dev 0 function 0: vendor 0x8086 product 0x0104 (rev. 0x09)
vga0 at pci0 dev 2 function 0: vendor 0x8086 product 0x0106 (rev. 0x09)
wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation), using wskbd0
wsmux1: connecting to wsdisplay0
drm at vga0 not configured
vendor 0x8086 product 0x1c3a (miscellaneous communications, revision 0x04) at 
pci0 dev 22 function 0 not configured
ehci0 at pci0 dev 26 function 0: vendor 0x8086 product 0x1c2d (rev. 0x05)
ehci0: interrupting at ioapic0 pin 16
ehci0: BIOS has given up ownership
ehci0: EHCI version 1.0
usb0 at ehci0: USB revision 2.0
hdaudio0 at pci0 dev 27 function 0: HD Audio Controller
hdaudio0: interrupting at ioapic0 pin 22
hdafg0 at hdaudio0: Realtek ALC269
hdafg0: DAC00 2ch: Speaker [Built-In], HP Out [Jack]
hdafg0: ADC01 2ch: Mic In [Jack] [Built-In]
hdafg0: 2ch/2ch 44100Hz 48000Hz 96000Hz 192000Hz PCM16 PCM20 PCM24 AC3
audio0 at hdafg0: full duplex, playback, capture, independent
hdafg1 at hdaudio0: Intel product 2805
hdafg1: DP00 8ch: Digital Out [Jack]
hdafg1: 8ch/0ch 48000Hz PCM16*
ppb0 at pci0 dev 28 function 0: vendor 0x8086 product 0x1c10 (rev. 0xb5)
ppb0: PCI Express 2.0 <Root Port of PCI-E Root Complex>
pci1 at ppb0 bus 1
pci1: i/o space, memory space enabled, rd/line, wr/inv ok
ppb1 at pci0 dev 28 function 1: vendor 0x8086 product 0x1c12 (rev. 0xb5)
ppb1: PCI Express 2.0 <Root Port of PCI-E Root Complex>
pci2 at ppb1 bus 2
pci2: i/o space, memory space enabled, rd/line, wr/inv ok
vendor 0x1814 product 0x5390 (miscellaneous network) at pci2 dev 0 function 0 
not configured
ppb2 at pci0 dev 28 function 3: vendor 0x8086 product 0x1c16 (rev. 0xb5)
ppb2: PCI Express 2.0 <Root Port of PCI-E Root Complex>
pci3 at ppb2 bus 3
pci3: i/o space, memory space enabled, rd/line, wr/inv ok
vendor 0x1b21 product 0x1042 (USB serial bus, interface 0x30) at pci3 dev 0 
function 0 not configured
ppb3 at pci0 dev 28 function 5: vendor 0x8086 product 0x1c1a (rev. 0xb5)
ppb3: PCI Express 2.0 <Root Port of PCI-E Root Complex>
pci4 at ppb3 bus 4
pci4: i/o space, memory space enabled, rd/line, wr/inv ok
alc0 at pci4 dev 0 function 0: Atheros AR8151 v2.0 PCIe Gigabit Ethernet
alc0: interrupting at ioapic0 pin 17
alc0: Ethernet address 10:bf:48:16:53:a1
ukphy0 at alc0 phy 0: OUI 0x00c82e, model 0x0007, rev. 0
ukphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT-FDX, auto
ehci1 at pci0 dev 29 function 0: vendor 0x8086 product 0x1c26 (rev. 0x05)
ehci1: interrupting at ioapic0 pin 23
ehci1: BIOS has given up ownership
ehci1: EHCI version 1.0
usb1 at ehci1: USB revision 2.0
ichlpcib0 at pci0 dev 31 function 0: vendor 0x8086 product 0x1c49 (rev. 0x05)
timecounter: Timecounter "ichlpcib0" frequency 3579545 Hz quality 1000
ichlpcib0: 24-bit timer
ichlpcib0: TCO (watchdog) timer configured.
ahcisata0 at pci0 dev 31 function 2: vendor 0x8086 product 0x1c03 (rev. 0x05)
ahcisata0: interrupting at ioapic0 pin 19
ahcisata0: 64-bit DMA
ahcisata0: AHCI revision 1.30, 6 ports, 32 slots, CAP 
0xe730ff45<EMS,PSC,SSC,PMD,ISS=0x3=Gen3,SCLO,SAL,SALP,SSNTF,SNCQ,S64A>
atabus0 at ahcisata0 channel 0
atabus1 at ahcisata0 channel 1
ichsmb0 at pci0 dev 31 function 3: vendor 0x8086 product 0x1c22 (rev. 0x05)
ichsmb0: interrupting at ioapic0 pin 18
iic0 at ichsmb0: I2C bus
isa0 at ichlpcib0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: PC speaker
sysbeep0 at pcppi0
attimer1: attached to pcppi0
acpicpu0 at cpu0: ACPI CPU
acpicpu0: C1: FFH, lat   1 us, pow  1000 mW
acpicpu0: C2: FFH, lat 104 us, pow   350 mW
acpicpu0: P0: FFH, lat  10 us, pow 35000 mW, 2200 MHz
acpicpu0: P1: FFH, lat  10 us, pow 30785 mW, 2000 MHz
acpicpu0: P2: FFH, lat  10 us, pow 29079 mW, 1900 MHz
acpicpu0: P3: FFH, lat  10 us, pow 27071 mW, 1800 MHz
acpicpu0: P4: FFH, lat  10 us, pow 25435 mW, 1700 MHz
acpicpu0: P5: FFH, lat  10 us, pow 23510 mW, 1600 MHz
acpicpu0: P6: FFH, lat  10 us, pow 21943 mW, 1500 MHz
acpicpu0: P7: FFH, lat  10 us, pow 20089 mW, 1400 MHz
acpicpu0: P8: FFH, lat  10 us, pow 18589 mW, 1300 MHz
acpicpu0: P9: FFH, lat  10 us, pow 16810 mW, 1200 MHz
acpicpu0: P10: FFH, lat  10 us, pow 15380 mW, 1100 MHz
acpicpu0: P11: FFH, lat  10 us, pow 13674 mW, 1000 MHz
acpicpu0: P12: FFH, lat  10 us, pow 12007 mW,  900 MHz
acpicpu0: P13: FFH, lat  10 us, pow 10673 mW,  800 MHz
acpicpu0: T0: I/O, lat   1 us, pow     0 mW, 100 %
acpicpu0: T1: I/O, lat   1 us, pow     0 mW,  88 %
acpicpu0: T2: I/O, lat   1 us, pow     0 mW,  76 %
acpicpu0: T3: I/O, lat   1 us, pow     0 mW,  64 %
acpicpu0: T4: I/O, lat   1 us, pow     0 mW,  52 %
acpicpu0: T5: I/O, lat   1 us, pow     0 mW,  40 %
acpicpu0: T6: I/O, lat   1 us, pow     0 mW,  28 %
acpicpu0: T7: I/O, lat   1 us, pow     0 mW,  16 %
coretemp0 at cpu0: thermal sensor, 1 C resolution
acpicpu1 at cpu1: ACPI CPU
coretemp1 at cpu1: thermal sensor, 1 C resolution
timecounter: Timecounter "clockinterrupt" frequency 100 Hz quality 0
timecounter: Timecounter "TSC" frequency 2195107200 Hz quality 3000
acpiacad0: AC adapter online.
uhub0 at usb0: vendor 0x8086 EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhub1 at usb1: vendor 0x8086 EHCI root hub, class 9/0, rev 2.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
ahcisata0 port 0: device present, speed: 6.0Gb/s
ahcisata0 port 1: device present, speed: 1.5Gb/s
wd0 at atabus0 drive 0
wd0: <TOSHIBA MQ01ABD032>
wd0: drive supports 16-sector PIO transfers, LBA48 addressing
wd0: 298 GB, 620181 cyl, 16 head, 63 sec, 512 bytes/sect x 625142448 sectors
wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
wd0(ahcisata0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100) 
(using DMA)
atapibus0 at atabus1: 1 targets
cd0 at atapibus0 drive 0: <TSSTcorp CDDVDW SN-208BB, R8HC6GOC400J2D, AS01> 
cdrom removable
cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
cd0(ahcisata0:1:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100) 
(using DMA)
uhub2 at uhub1 port 1: vendor 0x8087 product 0x0024, class 9/0, rev 2.00/0.00, 
addr 2
uhub2: single transaction translator
uhub3 at uhub0 port 1: vendor 0x8087 product 0x0024, class 9/0, rev 2.00/0.00, 
addr 2
uhub3: single transaction translator
uhub3: 6 ports with 6 removable, self powered
uhub2: 6 ports with 6 removable, self powered
uhidev0 at uhub2 port 2 configuration 1 interface 0
uhidev0: Logitech USB Receiver, rev 2.00/24.00, addr 3, iclass 3/1
ukbd0 at uhidev0
uvideo0 at uhub3 port 2 configuration 1 interface 0: 04G6200086K1AN24B0017AW 
ASUS USB2.0 WebCam, rev 2.00/0.03, addr 3
video0 at uvideo0: 04G6200086K1AN24B0017AW ASUS USB2.0 WebCam, rev 2.00/0.03, 
addr 3
wskbd1 at ukbd0 mux 1
wskbd1: connecting to wsdisplay0
uhidev1 at uhub2 port 2 configuration 1 interface 1
uhidev1: Logitech USB Receiver, rev 2.00/24.00, addr 3, iclass 3/1
uhidev1: 8 report ids
ums0 at uhidev1 reportid 2: 16 buttons, W and Z dirs
wsmouse1 at ums0 mux 0
uhid0 at uhidev1 reportid 3: input=4, output=0, feature=0
uhid1 at uhidev1 reportid 4: input=1, output=0, feature=0
uhid2 at uhidev1 reportid 8: input=1, output=0, feature=0
uhidev2 at uhub2 port 2 configuration 1 interface 2
uhidev2: Logitech USB Receiver, rev 2.00/24.00, addr 3, iclass 3/0
uhidev2: 33 report ids
uhid3 at uhidev2 reportid 16: input=6, output=6, feature=0
uhid4 at uhidev2 reportid 17: input=19, output=19, feature=0
uhid5 at uhidev2 reportid 32: input=14, output=14, feature=0
uhid6 at uhidev2 reportid 33: input=31, output=31, feature=0
Kernelized RAIDframe activated
pad0: outputs: 44100Hz, 16-bit, stereo
audio1 at pad0: half duplex, playback, capture
boot device: wd0
root on wd0a dumps on wd0b
/: replaying log to memory
root file system type: ffs
/: replaying log to disk
wsdisplay0: screen 1 added (80x25, vt100 emulation)
wsdisplay0: screen 2 added (80x25, vt100 emulation)
wsdisplay0: screen 3 added (80x25, vt100 emulation)
wsdisplay0: screen 4 added (80x25, vt100 emulation)