Standby mode stops working after Service Pack 2 installation

[Guest]

Standby mode worked _flawlessly_ for years, until I installed SP 2 last week.

Now, when going into standby mode either manually or based on power
management settings, about 25% of the time the following occurrs: the video
turns off but the PC freezes with the fans and disk drives running. A reboot
is necessary to recover.

The SP 2 installation executed without any errors, and absolutely NOTHING,
other than SP 2 having been installed (not even a screen saver) was changed.
The BIOS looks like it's set correctly to auto detect hibernate or suspend.

The PC in question is an Asus P4P800E mb, Radeon 9600, P4 3.0, 1 GB RAM. It
is otherwise very stable and runs 24x7 (now that it can't suspend) without
any problems.

I tried diagnostic startups with only basic devices and services loaded, but
Standby mode failed as it does following a normal startup.

I upgraded the video drivers, but that didn't help.

Is there some other tool or methodology I can use to figure out what process
or driver is getting stuck when the PC tries to enter Standby?

Thanks in advance,
Martin

 

[Guest]

I'm thinking it's some driver that was OK before SP2, but now isn't working
fast enough for the changed operating system. Try updating the rest of your
drivers. Otherwise, trial & error: disable hardware devices via Device
Manager; use msconfig to disable startup items and services.

Paul Shafer, MCDST

 

[Guest]

Paul,

Thanks for your reply. It is absolutely a driver that was OK with SP 1 but
doesn't play nicely with SP 2; SP 2 was the only change that caused Standby
to no longer work.

As I mentioned, I did use msconfig to disable all non-essential drivers and
services and Standby still didn't work. I also updated the video driver and
checked for updates for some others.

I'm looking for a tool or methodology more precise than trial and error that
will help me identify the one driver that's interfering with Standby mode so
I can fix it ASAP.

Thanks,
Martin