Need some hibernation help/suggestions

**blackcobra487** · 08-07-2008, 01:03 AM

I'm having an issue with one of my USB devices when coming out of hibernation. I've used this thread to help fix the problem, and it worked just fine for a little while. I'm using it on a slim external DVD drive, my GPS receiver and my Belkin WiFi stick. Two out of the three work flawlessly. The one that doesn't is the DVD drive. I have a hunch that tells me it's has something to do with it getting power straight off the PSU. I was thinking of leaving it unplugged, but I'm sure .5amps (or whatever the USB ports give out) won't be enough to power the drive. So I have the crazy notion of somehow using the power in the USB cable to trigger a relay so that the drive can still get power from the PSU. What do you guys think? Would there be some other solution?

**blackcobra487** · 08-08-2008, 03:08 AM

Adding another thought to my problem, is there a relay that would operate at the 5v current that the USB would be putting out?

**chrislamb** · 08-08-2008, 03:52 AM

Why no use the +12V output from your PSU to trigger a normal car replay to switch the cars +13.5V to power a car 2 USB power supply like this one ?

http://www.dealextreme.com/details.dx/sku.688

The the drive would get USB power coming on & off with the PC.
Thats my plan anyway..........

**blackcobra487** · 08-08-2008, 12:33 PM

I looked up the specs for my DVD drive, and it needs ~1.5amps. This one amp charger won't do the trick. The reason I want to use the USB's 5v current is because I think the drive is getting power too early to resume properly.