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I installed Ubuntu 15.10. My touchpad works in I2C bus AND PS2 mode.

I want to blacklist the I2C mode. On Ubuntu 14.04/15.04 I executed :

sudo nano /etc/modprobe.d/blacklist.conf

I added the following line at the end :

blacklist i2c_hid

But this does not work on Ubuntu 15.10 anymore.

Blacklisting other modules (like psmouse for example) does not work either. Am I missing something ?

Is the process of blacklisting kernel modules in Ubuntu 15.10 (kernel 4.2) different now ?

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  • You need i8042.nopnp boot parameter. – Pilot6 Oct 26 '15 at 12:54
  • 1
    Possible duplicate of Dell Inspiron 3551 Unresponsive Touchpad – Pilot6 Oct 26 '15 at 12:56
  • And also you may need to run sudo update-initramfs -u – Pilot6 Oct 26 '15 at 12:58
  • @Pilot6 Please remove the close vote. This is not a duplicate but a general question with a specific example. – hg8 Oct 27 '15 at 10:39
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    Thx to remind. I upvoted it but forgot to remove the close vote. – Pilot6 Oct 27 '15 at 10:41
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This module must be in initramfs. To get it blacklisted run:

sudo depmod -a
sudo update-initramfs -u
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  • That worked, is there a way to undo this change ? – hg8 Oct 26 '15 at 13:14
  • Remove that blacklist entry and run the commands again. – Pilot6 Oct 26 '15 at 13:16
  • I did... Can't get the I2C mode back... Can it be related to the libinput install? – hg8 Oct 26 '15 at 13:24
  • No. Libinput is a user space driver. It is not related to kernel modules. Maybe remove i8042.nopnp and run sudo update-grub. – Pilot6 Oct 26 '15 at 13:26
  • Yes I did too... – hg8 Oct 26 '15 at 13:28

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