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My mousepad is not working after suspend on a Lenovo E460. It used to work perfectly but after this it no longer even appears in xinput. I have tried to plug in a mouse and that works fine.

Edit: Restarting etc. does not make it work again, it is completely gone as of after the suspend.

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  • Known bug with intel video driver: bugs.launchpad.net/ubuntu/+bug/1573454 Commented Sep 14, 2016 at 16:51
  • 1
    This is not the same bug as I stated, Their issue is with the pointer not being visible while mine is the entire touchpad is not being recognized. The workarounds for that bug does not work for me. Commented Sep 14, 2016 at 18:52
  • Did you suspend to RAM or suspend to disk (= hibernate)? Commented Feb 5, 2017 at 23:41

2 Answers 2

Reset to default
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Editing the grub file from,

GRUB_CMDLINE_LINUX=""

to,

GRUB_CMDLINE_LINUX="i8042.reset i8042.nomux i8042.nopnp i8042.noloop"

then updating grub solved the problem.

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1
  • What does this fix do? I put it in /etc/default/grub and it fixed it for Fujitsu Lifebook T725, but I don't understand why it works now. Will it have any side effects? Commented Jul 20, 2019 at 23:02
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I faced the same problem and after some research, I found this solution which worked for me:

1) Open terminal Ctrl+Alt+T
2) type in terminal sudo depmod -a
3) then enter your password
4) restart your pc [ you can use init 0 to shutdown, as mouse not working]

After the restart, your touchpad will work normally.

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