Thinkpad yoga x1 gen 2 freezes completely when stylus is used ubuntu 20.04.2

The moment the stylus gets near the screen the entire laptop freezes and becomes unresponsive (this just randomly started happening) I tried re-installing the driver, but it has not helped (I take all my notes on this laptop), I've been searching for answers and couldn't find the exact problem. I was hoping someone here might be able to help me with the issue...

Solution 1:

I had the same problem on my Lenovo Yoga C740 with kernel 5.8.0-45 on Groovy, fixed by downgrading to 5.8.0-44.

Solution 2:

Problem solved apparently it was an issue with corrupted data in the kernel for the wacom2 stylus driver, it was fixed by updating the entire kernel.

Solution 3:

This is more a comment to answer jomuller, but you can easily update the kernel to get your wacom driver again working using Mtompkins' Linux-kernel-utilities.

Ukuu was my former choice in years past but on Ubuntu 20.10 didn't work (using the old non-paid version). If you still need a GUI rather then the utilities mentioned above, you might try Mainline which looks like a Ukuu fork (I used it to remove 5.11 and get back on 5.9.1, works well).

There are several bugs on launchpad about this issue specifically, one of which I opened. Be warned, kernel 5.11 is quite unstable for my device (an old HP Envy Note 8) causes random reboots so your YMMV considerably (but the wacom driver and device offical stylus work perfectly again). I would start with any kernel above 5.8.