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Lenovo Thinkbook 14 vs Ubuntu Studio 22.04: Trackpad problem

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Using Ubuntu Studio 22.04 on a Lenovo Thinkbook 14. KDE Plasma 5.24.7.

When I boot up the system, everything is fine for awhile.

After some time, the trackpad becomes unreliable: slow, jittery movement, maybe it gets stuck in scroll mode. Nothing fixes it except a reboot. I don't like to reboot.

I have been unable to find out what is the kernel module for the trackpad on this system -- multiple web searches have turned up different answers (the most plausible lately was "hid_multitouch"), but none of them resolve the problem.

I had installed xserver-xorg-input-synaptics in an attempt to resolve it, but the problem persisted.

I'm quite out of ideas and would prefer not to carry a mouse everywhere.

EDIT: It is possibly related to audio applications running a low latency or real-time priority thread. I usually don't see the problem when browsing the web. I've seen sometimes with SuperCollider, and relatively frequently with Pure Data.

Thanks.

I sit in a Tesla and translated this thread with Ai:

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