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The powered USB on the netbook in sleep mode?

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I lead a very mobile lifestyle, and I always want the mobile Internet in the absence of the outlet. I carry a small HP EliteBook 2530p with Ubuntu on Board and HTC Desire HD. The Communicator is very widely used for surfing, calendar and mail. In the case of any serious used as a modem in conjunction with a netbook.


Desire HD has a microscopic battery, which is enough for me for a few hours (after various optimizations and dances with a tambourine around the firmware, and also purchase "how advanced" Chinese battery). Because of the peculiarities of the case the battery is inserted into the slit on the side, which eliminates the appearance of extended batteries are larger. Also uncomfortable and too tight case makes the very uncomfortable process of replacing the battery itself.


I know on some laptops there is a function sleep mode, USB powered, which is very convenient to use to charge your phone.


So, questions to the Esteemed Experts:
  1. Is it possible on my netbook?
  2. As it is properly called in English?
  3. At which level is implemented, hardware or software?
  4. And if the software, how depends on the OS?
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7 Answers

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Technology is the branch Powered_USBdeveloped by IBM, respectively, and the patent for them.
The extension allows you to give power to the usb hub in the laptop is switched off is called Always-On USB. Usually one of the hubs marked as Always-On USB hub, for example yellow or red, also you need to activate it through the BIOS.
Despite the fact that the patent for IBM, they sell the right to use other brands, for example ASUS.
\r
\rOfficial website Powered by USB.
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XS, in three of my laptops in sleep mode, power is supplied to the USB, regardless of OS. Appledaily, however, do not know how to use it, but Desire can.
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try different ports, I have only one. netbook ASUS, Ubuntu.
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I'm not sure that this feature will work in Linux, as always, at the expense of sleep modes and energy saving Linux to catch up.
But in General there are batteries with more capacity for desire, + 200mA/h without bulging, and where the 2x capacity akum protruding from the housing.
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on some laptops in the instructions saw that the food in the hibernation mode is only sold on certain ports. as a variant try different ports to insert and look at the charge
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Samsung NC215S has a special port that can charge devices directly from the solar battery.
\r
And the power to the USB ports in standby mode (hibernate it can't be) is usually very small and the device connected to that port is discharging faster than charging (if just on display. Or even during active attempts to find 3G network). I'm talking about normal laptops.
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works on one port for sure... netbook ASUS, wines KHP
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