wrote:
On Sun, 27 Apr 2008 16:44:52 -0700, Andy wrote:

:All you should have to do is uninstall the old graphics driver,
:reboot, then install the new graphics driver, and reboot again.

OK, so I downloaded the latest nVidia WHQL driver, the one you linked me
to today ( 169.21_forceware_winxp_32bit_english_whql.exe ) and I was
about to do as you say above when I thought I'd continue what I was
doing earlier in the day before I took a break from all this -- I had
done a google on "standby greyed out" and got lots of hits. On the
second Google page was this one:

http://forums.windrivers.com/showthread.php?t=81547

A guy suggested the fellow having the problem do an Everest Home Edition
report and paste it in a post. Having the program already installed, I
did a report and started searching through it for a clue. I left off at
around 25% into the long report. Just now, I decided to look further
into the report before uninstalling my display driver and installing the
new one. I noticed this about my rather newish 500 GB SATA HD:

[ SAMSUNG HD501LJ (S0MUJ1PP310938) ]

ATA Device Properties:
Model ID SAMSUNG HD501LJ
Serial Number S0MUJ1PP310938
Revision CR100-10
Parameters 969021 cylinders, 16 heads, 63
sectors per track, 554 bytes per sector
LBA Sectors 976773168
Buffer 16 MB (Dual Ported, Read Ahead)
Multiple Sectors 16
ECC Bytes 4
Max. PIO Transfer Mode PIO 4
Max. UDMA Transfer Mode UDMA 6 (ATA-133)
Active UDMA Transfer Mode UDMA 5 (ATA-100)
Unformatted Capacity 516064 MB

ATA Device Features:
SMART Supported
Security Mode Supported
Power Management Supported
Advanced Power Management Not Supported
Write Cache Supported
Host Protected Area Supported
Power-Up In Standby Not Supported
Automatic Acoustic Management Supported
48-bit LBA Supported
Device Configuration Overlay Supported

ATA Device Manufacturer:
Company Name Samsung
Product Information
http://www.samsung.com/Products/HardDiskDrive/index.htm
- - - -
In particular, I noticed where it said:

Advanced Power Management Not Supported
...and...
Power-Up In Standby Not Supported

So, I figuring it was another wild goose chase (I've been doing them all
weekend trying to resolve this!), I went into the BIOS and disabled SATA
HD support. Upon rebooting, my 500 GB SATA drive is no longer seen, but
my Standby and Hibernate are suddenly ENABLED!

I find this amazing. SATA HD's are supposed to be an advance, a relative
newcomer in the PC storage scene, and installing one has disabled my
ACPI! I wonder if there is a workaround? Maybe if I get an SATA
controller card?? Or maybe if I get a different SATA HD?

Dan

I checked my Everest report, and I have an older Seagate drive, not even
a SATA drive. My ATA Device Features are the same as yours, only
my "Automatic Acoustic Management" is "Not Supported". And my ACPI
is working. I'd say you're on to something, but it may not be the
hard drive. It could be the driver that controls the SATA interface,
whatever one is being used. Possible drivers would be a default
Microsoft one, or a chipset driver you installed when you used
the motherboard CD.

There is a program called "dummpo.exe" you can get from Microsoft. One
web site (a site in France), showed an example where dumppo had highlighted
a driver as not being compatible with ACPI. Implying that dumppo could
detect a problem. I'm not as hopeful myself, suspecting that it cannot
detect every problem. But maybe, if it uses the same logic and checks
the same facilities as the OS does, it will arrive at a correct answer.

Look for "LEGACY DRIVER DETECTED" on this page. This is a very large web page,
so allow a couple minutes for it to render. This is an archived copy.

http://web.archive.org/web/200404040...ndows2000.html

Dumppo runs in a DOS command box, and doesn't have a GUI. The following
is from a previous posting.

*******
ftp://ftp.microsoft.com/Products/Oem...cpi/dumppo.exe

dumppo options:

CAP = Capabilities
PS = Power Supply
BS = Battery Supply
ADMIN = Administration
AC = AC Power Settings
DC = DC Power Settings
AC MAXSLEEP=Sx
AC MINSLEEP=Sx
where x is the ACPI value (1 & 3)

You run the program in a command (DOS) window, and a basic command to
try would be "dumppo cap" to get capabilities.

Some other users having fun with Dumppo he

"dumppo admin /ac minsleep=S3"
http://forums.pcper.com/showthread.p...8&postcount=31
*******

HTH,
Paul