Suddenly my touchpad stopped working, and when went to check if touchpad setting is disabled in touchpad setting, I found no enable/disable button there.

Also,I can see USB optical mouse in that list but not touchpad :

No enable disable button/option :

dmesg when touchpad isn't working


  • probably driver error, do you check dmesg?
    – damadam
    Jul 5, 2018 at 9:06
  • No I don't know how to do that. Would you please tell me how to do that?
    – DexLost
    Jul 5, 2018 at 9:21
  • just open the terminal (you can do it with Ctrl+Alt+T), and just type dmesg; copy and paste the result here (Ctrl+C didn't work to copy on the terminal)
    – damadam
    Jul 5, 2018 at 9:28
  • Okay, I have done that and I can see something like a logfiles. But I can't understand them.
    – DexLost
    Jul 5, 2018 at 9:33
  • I have pasted here, thanks in advance. paste.ubuntu.com/p/KJWmkx3YRm
    – DexLost
    Jul 5, 2018 at 9:36

1 Answer 1


I tried the 2nd and 3rd answer of here Touchpad under 16.04 not working. Then I did i. sudo apt-get update ii. sudo apt-get install

After that I went to sleep for 9 hours(kept laptop shutdown for 9 hours). And it started working again.working

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