Unix & Linux Asked by nnyby on October 31, 2021
I have a Lenovo Ideapad 320-15ABR, (I found the exact model name with dmidecode
). I’m having trouble getting the touchpad to work. It’s not showing up in xinput --list
or cat /proc/bus/input/devices
. I’m using Linux 4.13.2, compiled with some extra debugging messages.
Here’s some relevant dmesg output when booted with i8042.nopnp
. Without this option, I get the message: i8042: PNP: PS/2 appears to have AUX port disabled, if this is incorrect please boot with i8042.nopnp
$ dmesg|grep psm
[ 2.595815] bus: 'serio': add driver psmouse
[ 2.627475] bus: 'serio': driver_probe_device: matched device serio1 with driver psmouse
[ 2.627477] bus: 'serio': really_probe: probing driver psmouse with device serio1
[ 2.627482] psmouse serio1: no default pinctrl state
[ 2.651584] psmouse: probe of serio1 rejects match -19
$ dmesg|grep i8042
[ 2.577522] i8042: PNP detection disabled
[ 2.578648] Registering platform device 'i8042'. Parent at platform
[ 2.578650] device: 'i8042': device_add
[ 2.578655] bus: 'platform': add device i8042
[ 2.578668] PM: Adding info for platform:i8042
[ 2.578682] bus: 'platform': add driver i8042
[ 2.578692] bus: 'platform': driver_probe_device: matched device i8042 with driver i8042
[ 2.578694] bus: 'platform': really_probe: probing driver i8042 with device i8042
[ 2.578699] i8042 i8042: no default pinctrl state
[ 2.578702] devices_kset: Moving i8042 to end of list
[ 2.595059] serio: i8042 KBD port at 0x60,0x64 irq 1
[ 2.595070] serio: i8042 AUX port at 0x60,0x64 irq 12
[ 2.595125] driver: 'i8042': driver_bound: bound to device 'i8042'
[ 2.595150] bus: 'platform': really_probe: bound device i8042 to driver i8042
[ 2.604184] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input0
edit:
I’ve opened a ticket here in case anyone is interested in following this problem: https://bugzilla.kernel.org/show_bug.cgi?id=196985
I have a Lenovo Ideapad 320.
Problem: Elan Touchpad (and a cursor, of course) randomly freezes. The system (Ubuntu 18.04) needs to be rebooted.
My workaround solution (with modprobe) is:
to make 2 scripts – I named them touchactive.sh
and touchactive2.sh
in /bin ( do it with sudo gedit...or something)
touchactive.sh
:
#!/bin/bash
modprobe -r elan_i2c
touchactive2.sh
:
#!/bin/bash
modprobe elan_i2c[/b]
then in terminal: sudo visudo
you add these lines:
vader ALL=(ALL) NOPASSWD: /bin/touchactive.sh
vader ALL=(ALL) NOPASSWD: /bin/touchactive2.sh
(vader
is my user name, so you change it with yours...)
...and save it
open system settings -> keyboard -> "+" -> and create shortcuts with keybinding:
name "Touchpad Elan Restart" 1 with keys "super" + "z" command: sudo /bin/touchactive.sh and... "Touchpad Elan Restart 2" with keys "super" + "x" command: sudo /bin/touchactive2.sh
restart computer
(this is my example you can choose different option, keys and names)
So when all freezes, you can just use keys super z and super x then your touchpad / cursor restarts without rebooting the whole system.
This is my solution and some relief (not very elegant, though...) so I can work normaly until release of a next kernel (there is some hope...)
Answered by voyrev on October 31, 2021
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