lost usb ports

English Hardware
1

On my pc, I have 2 usb ports on the front and more in the back. Also on the front is a CD drive, an SD card port and a headphone jack. The front usb ports no longer work. I have no SD cards to test that port with but both the headphone jack and CD drive work. I have checked the BIOS and all usb ports (front and back) are enabled. I opened the case to see if any loose connections were visible and saw none. I am not prepared to remove the motherboard to check the underside! I hope this hardware failure is easily fixable. Anyone have any ideas what to look for?

I have a couple of usb hubs that I could plug in the back to increase available ports. But, I don’t know how usb handles traffic. For example, what will happen if I use a hub to run both keyboard and mouse; or even a webcam on the same hub.

2

For a list that shows what the system detects

lsusb
3

Yo can do also

inxi --usb
4 
lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 007: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 006: ID 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Flash Drive
Bus 001 Device 005: ID 413c:2113 Dell Computer Corp. KB216 Wired Keyboard
Bus 001 Device 004: ID 046d:c501 Logitech, Inc. Cordless Mouse Receiver
Bus 001 Device 003: ID 058f:6387 Alcor Micro Corp. Flash Drive
Bus 001 Device 008: ID 0cf3:e005 Qualcomm Atheros Communications  
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

I have two extensions plugged into rear usb ports. They are not hubs. They are cables only, so I can use two ports without having to get behind my case. I had two unmounted devices in these extenders; 006 and 003. When I removed the devices, here is what lsusb gave me:

lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 007: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
Bus 001 Device 005: ID 413c:2113 Dell Computer Corp. KB216 Wired Keyboard
Bus 001 Device 004: ID 046d:c501 Logitech, Inc. Cordless Mouse Receiver
Bus 001 Device 008: ID 0cf3:e005 Qualcomm Atheros Communications  
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
5 
inxi --usb
**USB:**
  **Hub-1:** 1-0:1 **info:** Hi-speed hub with single TT **ports:** 10 **rev:** 2.0
  **Device-1:** 1-3:8 **info:** Qualcomm Atheros **type:** Bluetooth **rev:** 1.1
  **Device-2:** 1-5:4 **info:** Logitech Cordless Mouse Receiver **type:** Mouse
    **rev:** 1.1
  **Device-3:** 1-6:5 **info:** Dell KB216 Wired Keyboard **type:** Keyboard,HID
    **rev:** 2.0
  **Device-4:** 1-8:7 **info:** Realtek RTS5129 Card Reader Controller
    **type:** <vendor specific> **rev:** 2.0
  **Hub-2:** 2-0:1 **info:** Super-speed hub **ports:** 4 **rev:** 3.0

That was without the devices plugged into the extender cables. Next is with the devices plugged in

inxi --usb
**USB:**
  **Hub-1:** 1-0:1 **info:** Hi-speed hub with single TT **ports:** 10 **rev:** 2.0
  **Device-1:** 1-3:8 **info:** Qualcomm Atheros **type:** Bluetooth **rev:** 1.1
  **Device-2:** 1-4:10 **info:** Alcor Micro Flash Drive **type:** Mass Storage
    **rev:** 2.0
  **Device-3:** 1-5:4 **info:** Logitech Cordless Mouse Receiver **type:** Mouse
    **rev:** 1.1
  **Device-4:** 1-6:5 **info:** Dell KB216 Wired Keyboard **type:** Keyboard,HID
    **rev:** 2.0
  **Device-5:** 1-7:9
    **info:** Silicon Motion - Taiwan (formerly Feiya ) Flash Drive
    **type:** Mass Storage **rev:** 2.0
  **Device-6:** 1-8:7 **info:** Realtek RTS5129 Card Reader Controller
    **type:** <vendor specific> **rev:** 2.0
  **Hub-2:** 2-0:1 **info:** Super-speed hub **ports:** 4 **rev:** 3.0

Thank both of you for your help.