Can not blacklist kernel modules in Ubuntu 15.10

Question

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 ?

Possible duplicate of Dell Inspiron 3551 Unresponsive Touchpad — Pilot6, Oct 26 '15 at 12:56
@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
Thx to remind. I upvoted it but forgot to remove the close vote. — Pilot6, Oct 27 '15 at 10:41

score 6 · Accepted Answer · answered Oct 26 '15 at 13:05

6

This module must be in initramfs. To get it blacklisted run:

sudo depmod -a
sudo update-initramfs -u

answered Oct 26 '15 at 13:05

Pilot6

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
And also grep i2c_hid /etc/modprobe.d/* – Pilot6 Oct 26 '15 at 13:29
sudo modprobe i2c_hid output nothing – hg8 Oct 26 '15 at 13:30
You could blacklist it somewhere else. Run the grep command and you will find it. – Pilot6 Oct 26 '15 at 13:31
Ok got it. sudo modprobe i2c_hid get it back. Thanks ! – hg8 Oct 26 '15 at 13:34
Or a reboot. I did not mention it. – Pilot6 Oct 26 '15 at 13:35

1 Answers1