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26 Posts

01-06-2013

United States

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  • Message 11 of 411

Re: TPT2 has USB port power issue

2013-01-06, 15:37 PM

Ok this is a real kick in the gut here and a real disapointment.

 

However do you guys think this can be solved through a firmware or bios update by Lenovo?

 

Secondly, has anyone gotten an official response from Lenovo about this issue.

 

Its really disappointing because this bablet came the closest to my ideal choice, its only short coming for me was not being able to adjust the viewing angle when connected to the KB, but this puts be back to square one.

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229 Posts

10-08-2012

md, us

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  • Message 12 of 411

Re: TPT2 has USB port power issue

2013-01-06, 16:29 PM

this happens because the 10W AC adaptor is not powerful enough for external HDD. There should be a 25 W adaptor.

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53 Posts

01-06-2013

Nebraska

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  • Message 13 of 411

Re: TPT2 has USB port power issue

2013-01-06, 16:42 PM
I dont necessarily agree with that. It is true that the TP2 has a weak charger but the ASUS 810 has the same charger wattage. This is a hardware engineering issue because you can use any USB device with the Samsung 500t, ASUS 810 and the Envy X2. And all of yhese devices will work even on their own battery power. They dont have to be plugged into a power source. I know, because I have tested with all of them. Lenovo pulled another boneheaded engineering mishap. They market this tablet for the enterprise yet you wont be able to complete basic USB tasks that most business or even personal users will need at some point in time. You better fix this Lenovo or you can kiss the enterprise market goodbye.
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14 Posts

12-07-2012

Germany

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  • Message 14 of 411

Re: TPT2 has USB port power issue

2013-01-06, 22:31 PM
Yeah, this USB issue is a show stopper! A real blocker ... I've planned to order a device when it's available in Germany, but not with this issue, sorry! I really really hope that can be fixed. Please, the TP2 is my favourite device!
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10 Posts

11-26-2012

United States

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  • Message 15 of 411

Re: TPT2 has USB port power issue

2013-01-07, 0:57 AM

Dammit, I was holding out for one of these. 

 

I guess it's back to shopping. What a disappointment, my thinkpad edge e420S had screen issues immediately after the warranty expired, so I guess I shouldnt be too suprised. Lenovo's quality seems to be spiraling downwards.

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468 Posts

01-30-2012

US

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  • Message 16 of 411

Re: TPT2 has USB port power issue

2013-01-07, 1:36 AM

wrote:
I'm speechless !

Do I detect sarcasm from from a TPT1 owner?

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69 Posts

07-31-2009

Hudson Valley

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  • Message 17 of 411

Re: TPT2 has USB port power issue

2013-01-07, 4:25 AM

It should be possible to see the power budget for the USB ports in the device manager, as well as the current power draw of any attached USB device.  500 mA should be enough to charge an iPod or run an unpowered HDD.   The fingerprint reader on my t400s draws 10ma (it's an internaly attached usb device).  Has anyone checked their TPT2 to see what power level its ports (root hubs) are indicated to provide, and what power the attached devices are drawing?

 

 This link explains how to do this for Win 7 (The information is displayed the same in Win 8;  you get to device manager via control panel via the settings charm):

 

 http://voices.yahoo.com/how-check-power-usage-usb-device-7421930.html 

 

Lenovo's website does indeed advertise it as capable of attaching the usual types of USB devices; I'd be inclined to think this isn't working as designed, especially if the other Clovertrail tablets don't have the same issue-- if it indeed is a power issue.  But I could be wrong...

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391 Posts

08-25-2011

Iran, Tehran

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  • Message 18 of 411

Re: TPT2 has USB port power issue

2013-01-07, 5:56 AM

wrote:

wrote:
I'm speechless !

Do I detect sarcasm from from a TPT1 owner?


 

I've suffered from TPT1, thats true. But my TPT2 just shipped, and I cannot think how absurd it is to be locked up like an iPad !

----------------------------------------------------------------
ThinkPad Tablet 2 - 367927U
ThinkPad Tablet - 183822U
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72 Posts

01-05-2013

East Coast USA

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  • Location: East Coast USA
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  • Message 19 of 411

Re: TPT2 has USB port power issue

2013-01-07, 18:07 PM

Both ports say "500mA per port"

 

I also tried an Asus slim DVD with a Y cable plugged into the wall, no go, it would just spool up then die, and repeat this pattern forever.

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14 Posts

01-04-2013

US

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  • Message 20 of 411

Re: TPT2 has USB port power issue

2013-01-07, 18:11 PM

manuel,

 

I did try to boot from multiple "unpowered sources" both before and after I installed Windows 8 Ent.

-A Kingston DT Ultimate 32GB USB 3.0 memory key (FAILED)

-A 2 1/2" Seagate 500GB drive in a Vantec case (FAILED, didn't try to boot to this, only read)

-Lenovo external DVD drive PN 43N3266 (WORKED this drive does NOT have external power even available)

 

I then used a Belkin hub http://www.belkin.com/us/F5U304/p/P-F5U304 This is a powered hub. I was able to  connect a kb, mouse and all of the above devices. Only the Lenovo DVD was able to boot from this hub and directly connected to the TPT2

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