[ltp] USB 2.0 broken

[U Kuehn]

Hi Joerg,

Joerg Platte wrote:
> Am Montag, 17. Dezember 2007 schrieb Konstantin Filtschew:
> Hi,
> 
>> same for my T40 too. It worked for 3,5 years fine and then it was
>> broken.
>>
>> For me this is a hardware issue, because windows do the same and both
>> windows and linux were reinstalled for tests on a clean harddisk.
> 
> Hmm, yesterday I opened my T40 and removed some dust from the board and now 
> the port seems to work again. Strange... Hope there will be no more 
> malfunctions with USB.
> 

Had a similar problem with my T41, first USB 2.0 was broken (also under
Windows), then later the sound card vanished temporarily, and half a
year later the disk controller had problems...

Luckily, the machine was still under warranty, so I got the board
replaced. This fixed the problem.

>From what I heard some of these usb problems of early T40/41 models
appear to be related to some problem with static discharge in the south
bridge (note that the usb, sound and hard disk controller are located
there). However, I do not have some first-hand knowledge on this issue.

If on your machine the usb is reliably broken (mine was only temporarily
broken), it might make sense to see service. However, if your machine is
out of warranty, that might be quite expensive...

Hope the best
U