On my Lenovo S340 Ideapad with Xubuntu 19.10, I'm having a strange issue with my touchpad, apparently a 'MSFT0001:02 04F3:304B Touchpad' using a Synaptics driver. For no reason that I can find, the touchpad sometimes loses its ability to move the mouse. Despite this:
- The touchpad can still left-click and right-click.
- The keyboard works as normal.
- The mouse works fine on the lock screen (reached via the terminal); issues only return after an unlock.
- Logging out and back in fixes the problem.
- No method of disabling and renabling the touchpad that I know of fixes the problem. For example, I've had no success with
sudo modprobe psmouse
,sudo modprobe -r psmouse
, or the otherwise-working Fn+F6. - Of what is listed here, I have not tried
sudo rmmod psmouse
or installing the Synaptics program. - Gestures no longer work.
- I know of no gestures that could cause this.
Where can I investigate this problem further? Is there a less extreme temporary solution than logging out? So far, I have only noticed that I might have ACPI issues.
Update: The past two times that my mouse has failed, it has been through plugging in my USB headphone and turning it on. This doesn't always happen, but it's the only causal link that I've found.
sudo modprobe -r i2c_hid && sudo i2c_hid
.