[ltp] T40 and USB 2.0

[Joel Ebel]

Mine said the USB2 controller was working as well, but if I plugged in 
anything USB2, it would attach itself to the slower USB controller and 
tell me the device would operate faster if plugged into a USB2 capable 
port.  This happened with USB2 hubs and storage devices.  In linux, if 
ehci-hcd was loaded, not much USB worked at all.

Joel

Tim Prince wrote:
> At 06:13 AM 4/28/2005, Joel Ebel wrote:
> 
>> You might want to check if it works in windows, or perhaps under 
>> knoppix or some other easy to boot OS.  It should just work.  If it 
>> doesn't, you might have a fried USB2 controller.  That happened to me, 
>> and IBM replaced the mainboard.  It doesn't seem to be too uncommon 
>> unfortunately.  Others have had USB go bad as well.  Some had USB stop 
>> working entirely, some, like myself and perhaps you, just lost USB2.
> 
> 
> USB on my T40 has never worked either in Windows or linux, except to 
> support the mouse.  I supposed it is a side effect of the non-stock 
> reduced price configuration ordered by my employer.  How could the 
> controller be "fried" with the mouse still working, and the Windows 
> device manager claiming that the USB2 controller is working?
> 
> 
> Tim Prince