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ravv
What's DOS?
Posts: 1
Registered: ‎06-06-2017
Location: US
Views: 1,265
Message 1 of 1

T460s - single USB port not working in BIOS/OS (hardware issue?)

All three USB ports on my T460s have been working fine since the beginning (Feb 2017), but now (Jun 2017) one of them seems to have broken. I have a USB mouse and a USB keyboard, and both work just fine when plugged into the two good ports, and neither works when plugged into the bad port. Neither the light in the mouse nor in the keyboard turns on when plugged into the bad port.

 

If I plug the keyboard into the bad port and boot into BIOS, I cannot use the keyboard to navigate the BIOS, and the numlock LED doesn't light up as it normally did. This tells me it's a hardware problem and not an OS problem.

 

Has anyone else had such an issue?

 

When I got my computer, luckily I ran the "sudo lsusb -v" command in Linux and captured the output in case something like this should happen. If I compare the output back then to the output now, the only important difference is as follows. Under "Hub Port Status", it used to say (when the keyboard was plugged in the port which is now bad):

 

 

  Hub Port Status:
    Port 1: 0000.0503 highspeed power enable connect
    Port 2: 0000.0100 power
    Port 3: 0000.0303 lowspeed power enable connect
    Port 4: 0000.0100 power
    Port 5: 0000.0103 power enable connect
    Port 6: 0000.0100 power
    Port 7: 0000.0103 power enable connect
    Port 8: 0000.0503 highspeed power enable connect
    Port 9: 0000.0100 power
    Port 10: 0000.0100 power
    Port 11: 0000.0100 power
    Port 12: 0000.0100 power

 

Now, it says:

  Hub Port Status:
    Port 1: 0000.0100 power
    Port 2: 0000.0100 power
    Port 3: 0000.0303 lowspeed power enable connect
    Port 4: 0000.0100 power
    Port 5: 0000.0103 power enable connect
    Port 6: 0000.0100 power
    Port 7: 0000.0103 power enable connect
    Port 8: 0000.0503 highspeed power enable connect
    Port 9: 0000.0100 power
    Port 10: 0000.0100 power
    Port 11: 0000.0100 power
    Port 12: 0000.0100 power

 

The difference being in "Port 1" which says just "power" instead of "highspeed power enable connect". When I plug my keyboard in the remaining good port, "Port 4" updates, and when I unplug my mouse, "Port 3" updates, so this indicates to me that "Port 1" is the bad port and "Port 3" and "Port 4" are the remaining good ones.

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