Cannot wake PC from USB device

Participant · 30 Aug 2011 at 12:07

Hello guys

Does anyone have a clue what's going on here...

I have just built a S775 HTPC in the living room, and cannot get it to wake from S3 sleep (suspend to RAM) by pressing the mouse or keyboard. I have to walk over and press the power button...not very HTPC-friendly. It's a Zotac G41 board housing an E2140.

- BIOS is set to S3 suspend and allow USB devices to wake PC.
- Windows 7 Ultimate suspends to RAM no problem.
- USB power settings for mouse and keyboard are both set to allow device to wake from USB.

Any further ideas? LMGTFY has drawn a blank so far. The keyboard and mouse are fairly old but not ancient Logitech wireless devices.

Thanks.

Participant · 30 Aug 2011 at 12:35

Thanks. I presume your devices are wireless too? As my W7 PC upstairs wakes from S3 sleep on wired mouse click or wired keyboard no problems. Only difference I can see is that my devices downstairs are wireless and older.

I might try updating the BIOS tonight but I hate doing that

. I might also get a USB IR receiver and see if I can wake it up from my Harmony.

Participant · 30 Aug 2011 at 16:39

That sounds promising...I'll give that a go, thanks.

Participant · 31 Aug 2011 at 16:51

Hmmm, thought I replied in here last night. Odd.

Last night I tried enabling 'Allow this device to wake the PC' or whatever it is in the individual USB hubs under 'View devices by connection', with no change.

dave-lew99 said:
On my HTPC i have to set jumpers which
enable power to the USB ports during standby - although having a quick flick through the manual for your board i can't see anything to that effect.

Are the USB definitely devices powered when in standby?

The wireless hub that the keyboard and mouse talk to blinks dimly at regular intervals when the PC is asleep, so I'm fairly sure that yes it's powered in standby / sleep.

bledd. said:
First step..

BIOS update
Load optimal defaults
Setup S3 in BIOS, enable wake etc
-Check for jumpers..

Install chipset and gfx drivers

pray

Ok I'll update the BIOS tonight *shudder*. S3 is definitely set in the BIOS and I can't find any reference to jumpers either. It's quite a modern board really and I thought mobo jumpers were a thing of the past?

Thanks all

.

Participant · 31 Aug 2011 at 18:18

Thanks bledd, I've disabled hybrid sleep so it literally suspends to just RAM and wakes up in about five seconds. The only other thing I can think might be causing the issue is that the Logitech iTouch (lol) software that came out with this set isn't compatible with Vista or 7, you have to just use the generic drivers.

Oh well, going to reinstall everything and take it from there. If it still doesn't work it's going in the bin

. Thanks a lot.