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List:       linux-thinkpad
Subject:    Re: [ltp] Re: T60 Advanced Mini Dock usb problem
From:       Aidan Marks <aidan () cisco ! com>
Date:       2007-06-29 6:12:35
Message-ID: 4684A2D3.3040502 () cisco ! com
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Hi,

No, reloading the usb modules does not work unfortunately.

U Kuehn wrote:
> Stefan Monnier wrote:
>>>>> I have a T60 and the Advanced Mini Dock (39T4596).  I have found that the
>>>>> usb ports on the back on the dock only work if the laptop is powered up
>>>>> while in the dock.  If I dock the machine already booted up, the
>>>>> ports/hub isn't registered and naturally don't work.
>>>> Hmm... I have this exact same thing, but I only used the ethernet&DVI ouput
>>>> until now.  I'll try it when I get back to my office.
>>>>
>>>> Does it work if you hibernate&wakeup (aka suspend-to-disk)?
>> I've just tried it on my machine, and I see the problem you describe
>> as well.  But as soon as I suspend&wake up, it all goes back to normal.
>> Even suspending to ram is sufficient.
>>
>> I hadn't noticed it before, because I barely if ever dock my machine while
>> it's running.  It's always either sleeping (suspended to ram) or turned off
>> (usually suspended to disk).
>>
> 
> Maybe unloading and reloading the usb driver modules (uhci_hcd,
> ehci_hcd) after putting the machine into the dock helps? I know this
> would only be a cheap workaround, but might help tracking down the problem.
> 
> Regards,
> Ulrich
> 
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