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Running Linux Kernel 5.7.4 with Ubuntu 20.04 on Ideapad 5 15ARE05.

The touchpad for this laptop did not work out of the box on Ubuntu, but after a lot of searching, I found a working solution here: IdeaPad 5 15are05 - elan touchpad not working on 20.04 nor on 18.04 by blacklisting the elants 12c driver. However, yesterday the touchpad completely stopped working and no longer even shows up in cat /proc/bus/input/devices.

Using the solution provided by theunreal89:

modprobe i2c_hid
echo "i2c-ELAN0001:00" > /sys/bus/i2c/drivers/elants_i2c/unbind
echo "i2c-ELAN0001:00" > /sys/bus/i2c/drivers/i2c_hid/bind

I get the error that Module elants-12c not found along with no such device. It is almost as if the touchpad just disappeared overnight! If anybody could help me with this, I would really, really appreciate it.

Aru
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  • Did you try restart? There could have been some error while waking up from sleep for example. – lamka02sk Jul 07 '20 at 17:28
  • @lamka02sk Yes, restarting sometimes temporarily solves the problem, but a more reliable solution is needed. – Aru Jul 07 '20 at 23:27
  • Then you should really just try to recompile the kernel. That's what I did and everything works flawlessly. My first time ever compiling Linux kernel and everything worked out just fine. I followed answer from the same question you did: https://askubuntu.com/a/1248439/543371, but I had replace the last 3 commands with this answer since I was compiling on a different machine: https://unix.stackexchange.com/a/531901. Hope this helps! – lamka02sk Jul 08 '20 at 22:40

1 Answers1

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I have a laptop Ideapad 3 15are05. And my touchpad didn't work either, used the same as you did. The command helped me to solve the problem: echo -n 1-7:1.0 | tee -a unbind

Clark Brown
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