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why does my PC shuts down USB ports? Answered

my PC (a new HP, recently installed windows 7) shuts down the USB ports on an irregular basis.
when i dont use it for a while (say 5 min) it shuts down the screen and such to save power, but it doest shut down USB ports.
then, when i move my mouse everything starts up again, with one problem, it stops USB stuff after 5 secs.
becouse i dont have PS2 ports on the PC, the only way to get USB mouse/keyboard back is turning the PC off and on.

this problem always was on the PC, worse with vista (like everyday once or twice) but now with windows 7 (free upgrade FTW) it happens alot less.
fact remains that it is frigin anoying since ive gotta restart everything and i cant even save stuff. (thank god for auto save)

why does this happen, and how can i fix the problem?

Discussions

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lemonie

Best Answer 8 years ago

Have you checked the Power Management settings?
Frigg

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godofallemonie

Answer 8 years ago

theres nothing there about USB

and whats that frigg about?

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godofallemonie

Answer 8 years ago

that site looks promising, il look into it when i have the time.

so, friggin comes from that frigg goddess? (btw, i know about that 2 G's, it was a typo)

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lemoniegodofal

Answer 8 years ago

No it doesn't actually, but the (slang) meaning is less wholesome...

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orksecurity

8 years ago

Depending on how your machine behaves and what you're trying to do, using a separately-powered USB hub may help. (Or may not.)

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godofalorksecurity

Answer 8 years ago

but then u would assume that the data streams off the USB ports do work?

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orksecuritygodofal

Answer 8 years ago

Without the PC (or more accurately, a USB host) controlling it, there is no USB protocol and no data transfer. My mistake; I assumed you were only asking about power.

I agree with the others that if the PC is running but USB isn't, this sounds most likely to be a problem in your system's power management settings. Second most likely would be a problem in the drivers, or in the devices.

One thing you can try, which worked for me a year ago when I had a similar problem: If you lose a device, unplug it from the USB port, wait a moment, then plug it back in. That may be enough to wake up the driver.

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godofalorksecurity

Answer 8 years ago

did that, doesnt work
its kinda strange, both mouse and keyboard are connected to a wireless receiver, and when they stop working, that wireless receiver still has power, and the led that blinks when its receiving data still blinks, but the mouse/keyboard doesnt do anything on the screen.
but, when i take it out and then plug it back in, it stops even with that blinking as if theres no power.
my guess is that it normally boots when u plug it in and its found by the PC, and then keeps working till the power is gone, but when i take it out and plug it in its not found by the PC anymore, and thus my guess would be that power works, but the data streams wont...