[ltp] Mysteriously non-working presentation remote

[Nathaniel Smith]

On Sat, Aug 23, 2008 at 7:20 AM, Marius Gedminas <marius@gedmin.as> wrote:
> On Fri, Aug 22, 2008 at 10:42:42PM -0700, Nathaniel Smith wrote:
>> The weird thing is that now, when I plug said dongle into my X60, the
>> kernel does not notice.  It doesn't work, and it doesn't even show up
>> in lsusb:
>>     ~$ sudo lsusb    # without device plugged in
>>     Bus 001 Device 001: ID 0000:0000
>>     ~$ sudo lsusb    # with device plugged in
>>     Bus 001 Device 001: ID 0000:0000
>>     ~$
>
> Do you see any error messages in dmesg, when you plug it in?

Nope, thought of that -- nothing.

>> So somehow there is something mysteriously broken with the
>> *combination* of my X60 and the presentation remote.
>
> If I'm not mistaken, USB1 and USB2 devices are handled by different
> hardware controllers (ohci/uhci and ehci).  One of those might be broken
> on your laptop.  I had a T42 with that problem.

Oh, brilliant!

Yep, just checked -- a quick 'modprobe uhci-hcd' fixed things.  Thanks!

-- Nathaniel