Recreateable inability to wake from sleep

[amoss]

Please help by testing if you can recreate this on your media center PC...

Computer: Nvidia 8300 motherboard, Vista Ultimate x64, Onboard 8300 Graphics, Latest nvidia drivers, up to data vista config, ms remote control, most other items of hardware and software I have tried disabling without it making any difference to this problem.

I have been trying to nail the reasons for my computer not waking from sleep properly. There are many different issues here, but one is that the computer occasionally will not wake from sleep from a USB device when it goes to sleep automatically, but will using the power button. Other times it wakes fine.

For diagnosis purposes I have turned off hybrid sleep and hibernate and all other unnecessary power management issues. Also I have managed to produce the following recreateable circumstances when an equivalent error occurs:

Computer on. Press Sleep button on windows remote. Goes to sleep. Wakes fine using keyboard, remote, etc.
Computer on. Press Sleep button on windows remote. While going to sleep, keep pressing sleep button on remote. Goes to sleep. Will not wake from sleep using remote, keyboard or any other device. However can use the power button, which brings it out of sleep immediately (hence clearly not in hibernate mode). It seems that in this scenario the wake from USB is failing.

The questions I have are:

Is this recreateable by other people (please give details of your setup: other on 64 bit/32 bit, others on nvidia/ati, or just everyone)?

Is there a reasonable interpretation of this behaviour that will help to nail the specific problem and hopefully the more general problem too? Maybe there is something about USB power or the way USB devices are handled? Note the USB devices do work after the computer is out of standby, so it is a wake from standby issue.

And yes, I do recognise that Microsoft seem to be getting us all to do their Beta testing for them... But this and related issues are a real bugbear for Media Center PCs: Given how little I use the media center PC, I have no intention of leaving on all the time, but as it is in a different room (piping everything by HDMI rather than extender) it needs to just work.

Thanks in advance.

Amos

[amoss]

In fact it seems this is true if I press the keyboard buttons while it is going to sleep too. I cannot seem to recreate this on my other vista machine. Is this just me on my lonesome? I am beginning to think so, but if anyone can help by checking and telling me it really is just me that will help...

Thanks

Amos

[audiophile]

i found s3 sleep mode a pain in the butt and could never get it to wake properly.

However s1 works like a charm (been running for a week), but uses more power which i can live with.

I will when i get the chance to try s4.

Did you read your motherboard manual and jumper the USB ports for the appropiate sleep mode youa re testing (this is needed on the 8200 motherboards) not sure about 8300, but something to check nonetheless.

[TheRob]

Originally Posted by amoss

In fact it seems this is true if I press the keyboard buttons while it is going to sleep too. I cannot seem to recreate this on my other vista machine. Is this just me on my lonesome? I am beginning to think so, but if anyone can help by checking and telling me it really is just me that will help...

On my system I don't get any of the behaviour you are seeing. In fact I've never had any problems at all with S3 sleep at all. I would say that it is something peculiar to your particular hardware combination.

Not wishing to diminish your problem, but if it only happens when you press keys or buttons when the PC is going to sleep, why don't you just make sure you don't press any keys or buttons when the PC is going to sleep?