I recently purchased a Fujitsu USB DVD burner, which is powered by USB. It came with a Y-shaped USB connector, because apparently plugging it into two USB ports provides more power or something. After using it successfully a few times, I found that if I used it and my USB hard drive (also powered by USB) at the same time, both devices would become unusable. When I inserted my hard drive, the computer would make the standard USB connect sound, followed by a "da-da-da" sound (
like this), then nothing. Device Manager told me that I had loaded two instances of the same storage device driver, and only restarting the computer allowed me to use either device again. Just using the DVD drive on its own was no problem, but now it seems that I can't use the DVD drive at all. My computer will recognize it when I plug it in, but as soon as I insert a disc, I will hear the "da-da-da" sound and have to restart my computer again. One time, my computer reset on its own.
I googled this problem and found some threads about similar issues, and it seems that it might be a PSU issue. Would getting an externally-powered USB hub fix this problem? Might it just be a driver issue?
|EDIT| I've checked the DVD drive with my netbook, and it seems to work fine (so far), so I'm pretty sure it's not a problem with the drive.
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I can see if you connect both at the same time your computer not having enough juice for both.
Also be happy you don't have to carry around a giant brick of a power supply, just that one dual plug in usb cable.
Goto your device manager. Expand the Universal Serial Bus controller section. It might be different for you as I'm running Windows 7 but whatever! We will push on.
What you'll do next has worked when we've had weird issues. Normally involving Blackberries.
Uninstall every one of the devices under the USB controller section. Don't restart until you've uninstalled everyone.
Let me know how that goes.