power to USB when in standby?

T400/410/420 and T500/510/520 series specific matters only
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ljwobker
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power to USB when in standby?

#1 Post by ljwobker » Wed Aug 19, 2009 7:04 am

I remember reading that the T400 was supposed to have the feature that would allow the USB ports to be powered even when the machine was in standby, so you could essentially use the battery to charge mobile phones or things like that. Anyone know how to enable this?

visionviper
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Re: power to USB when in standby?

#2 Post by visionviper » Wed Aug 19, 2009 8:59 am

It is a setting in the Lenovo Power Manager under "Global Power Settings".
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Guide to fixing T4x GPU problems via reflow

Current: T420s
Former: X301, X61t, T40

ljwobker
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Posts: 76
Joined: Sun Sep 24, 2006 5:55 pm
Location: Raleigh, NC, USA

Re: power to USB when in standby?

#3 Post by ljwobker » Wed Aug 19, 2009 5:00 pm

Yeah, found that... I have "enable always on USB" checked, but still no power on any of the ports when I standby the machine. ;-(

visionviper
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Re: power to USB when in standby?

#4 Post by visionviper » Wed Aug 19, 2009 10:20 pm

Is your Thinkpad plugged in? It only works when your Thinkpad is connected with the AC adapter.
7mm SSD list
Guide to fixing T4x GPU problems via reflow

Current: T420s
Former: X301, X61t, T40

ljwobker
Freshman Member
Posts: 76
Joined: Sun Sep 24, 2006 5:55 pm
Location: Raleigh, NC, USA

Re: power to USB when in standby?

#5 Post by ljwobker » Wed Aug 19, 2009 11:51 pm

yeah, I tried it both on AC and battery power (this was before I knew battery only wasn't supported) and got nothing ;-( Also checked the BIOS and it's enabled there as well...

there aren't any operating system requirements, right? any reason it shouldn't work on XP/SP3?

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