ACPI Issues

I've been running current on my Sony FXA36 laptop for a couple months 
now--works great, with a few minor acpi issues.

I have dumped my acpi code, and fixed up all compile problems, fwiw.

1) question/issue:
hw.acpi.supported_sleep_state: S3 S4 S5

yet lid_switch_state, standby_state, and sleep_button_state are all set 
to S1--an unsupported mode. Would it make sense to determine what acpi 
sleeps modes are supported at boot time, and then set these sysctl 
values to something supported?

2) problem

when going to sleep mode (that is, S3 mode)--it powers down ok, and 
revives ok on a keypress--but the screen only flashes on for one brief 
second and then is off again.  I can login to a prompt, type shutdown, 
etc (without seeing the screen) and that works, so it's just the screen 
that doesn't reinitialize--any way to get around this?

3) I'm assuming error messages like this one are simply a problem with 
my laptop's acpi code and can't be avoided:

for instance, when I run the command
"acpiconf -i 0"

I get the following output

Jan 23 00:47:43 mycomp kernel: ACPI-0440: *** Error: Handler for 
[EmbeddedControl] returned AE_NO_HARDWARE_RESPONSE
Jan 23 00:47:43 mycomp kernel: ACPI-1287: *** Error: Method execution 
failed [\_SB_.PCI0.PIB_.EC0_.SMRD] (Node 0xc2b676a0), 
AE_NO_HARDWARE_RESPONSE
Jan 23 00:47:43 mycomp kernel: ACPI-1287: *** Error: Method execution 
failed [\_SB_.BAT1.UPBI] (Node 0xc2b6a740), AE_NO_HARDWARE_RESPONSE
Jan 23 00:47:43 mycomp kernel: ACPI-1287: *** Error: Method execution 
failed [\_SB_.BAT1._BIF] (Node 0xc2b6a780), AE_NO_HARDWARE_RESPONSE

and at boot time, right the harvesting entropy line, and before the 
swapon line, I get:

     ACPI-0440: *** Error: Handler for [EmbeddedControl] returned 
AE_NO_HARDWARE_RESPONSE
     ACPI-1287: *** Error: Method execution failed 
[\_SB_.PCI0.PIB_.EC0_._Q20] (Node 0xc2b675a0), AE_NO_HARDWARE_RESPONSE
     ACPI-1287: *** Error: Method execution failed [\_SB_.BAT1._BST] 
(Node 0xc2b6a760), AE_AML_UNINITIALIZED_LOCAL
     ACPI-0440: *** Error: Handler for [EmbeddedControl] returned 
AE_NO_HARDWARE_RESPONSE
     ACPI-1287: *** Error: Method execution failed 
[\_SB_.PCI0.PIB_.EC0_.SMWR] (Node 0xc2b67680), AE_NO_HARDWARE_RESPONSE
     ACPI-1287: *** Error: Method execution failed [\_SB_.BAT1.UPBI] 
(Node 0xc2b6a740), AE_NO_HARDWARE_RESPONSE
     ACPI-1287: *** Error: Method execution failed [\_SB_.BAT1._BIF] 
(Node 0xc2b6a780), AE_NO_HARDWARE_RESPONSE

(which I actually think is slightly different than I got before I 
"fixed" my dsdt)

If there's anything to fix, I'll post dmesgs, the acpi code, etc if 
anyone is interested.

thanks much,
Scott