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I am running Ubuntu 20.4.keyboard is not responding. How do I reset the USB Ports. the ports located t the back of the computer re not working. keyboard. Please help.There re so many solutions which one should I follow?

I apologize for the delay. Its a Dell 3646 desktop.

The output of uname -a:

Linux seshagiri-Inspiron-3646 5.4.0-65-generic #73-Ubuntu SMP Mon Jan 18 17:25:17 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

I have two external keyboards. and I have checked in all 4 USB ports. I was checking yesterday and found that some of the ports are not working.All the 4 failed yesterday at the same time.Both the keyboards are in perfectly working conditions.I just wanted to make sure there was bit delay in replying to your questions.

Here is the output:

seshagiri@seshagiri-Inspiron-3646:~$ lsusb Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 007: ID 0cf3:0036 Qualcomm Atheros Communications Dell USB Wired Entry Keyboard Bus 001 Device 005: ID 0bda:0157 Realtek Semiconductor Corp. Mass Storage Device Bus 001 Device 004: ID 05e3:0608 Genesys Logic, Inc. Hub Bus 001 Device 003: ID 0461:4e22 Primax Electronics, Ltd USB Optical Mouse Bus 001 Device 002: ID 413c:2111 Dell Computer Corp. Dell USB Wired Entry Keyboard Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

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  • Do you mean Ubuntu 20.04? – David Feb 13 at 15:42
  • Yes in Ubuntu 20.4 – Seshagiri Rao Feb 13 at 17:49
  • is this a lapptop? If so is an external keyboard working? uname -a and dmesg | grep grep intel-vbtn any output? Please add all output's to your question. – nobody Feb 14 at 12:21
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Settings -> Universal access -> Typing -> Screen Keyboard

sudo apt update && sudo apt upgrade

Maybe this will work?

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  • 1
    That is a comment not an answer. – David Feb 14 at 6:01
  • Would you please share the output of lsusb – mondotofu Feb 14 at 19:01

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