S3 and/or S4 modes for Sony Vaio PCG-v505?

[George Hartzell]

Joe Kraft writes:
 > I've sent this to the ACPI list, but didn't receive any responses.  I'm 
 > hoping sending this here will come up with something.
 > 
 > Has anyone looked at the suspend modes for this (or any other) Sony 
 > Vaio? Of course it's the one I have...  :-)
 > 
 > It doesn't seem to return from the S3 or S4 state.  In a little
 > debugging of the S3 state, I'm getting the ACPI return from suspend
 > message in my message log.  The display never lights back up and the
 > computer doesn't respond to anything except the power switch.
 > 
 > I haven't found anything from google, or in the handbook that really helps.
 > 
 > I've dumped the ASL and it compiles cleanly.  I've stripped most devices 
 > out of the kernel to get a minimal version for testing, and built a 
 > debug version of the acpi module.  At this point, I don't understand the 
 > ACPI code well enough to understand how it's all supposed to work.
 > 
 > Does anyone have any suggestions about where to look to see about 
 > getting this working?  Eventually I'd like to get it working well enough 
 > to use FBSD for my laptop OS, but for now I'd be happy to get even a 
 > little of it to work from the console.

I'm in just about the same spot w/ a PCG-GRX570 and S3.  I've noticed
that with a stripped down kernel, after resuming, I can hit the power
button and have it almost completely shut down (although you can't see
anything).  It does hang, but it seems to get the filesystems
unmounted and stuff (they're clean on the reboot).

I have Ubuntu linux installed in another partition on the machine, and
it does a good deal better resuming (X has some issues, but....).

I've tried most of the stuff that I can find via google and the
mailing lists.

Otherwise, I'm trying to figure out how to proceed (in my spare time).

g.