I have a Gen3 T14 ThinkPad that I love, but I'm facing one annoying issue. The TrackPoint is constantly recalibrating incorrectly, causing the cursor to move on its own. It takes a few seconds to recalibrate, but during this time, the mouse becomes unusable. It does this when the trackpoint is held for about 5 seconds in one direction. This issue makes playing games really difficult. I did some digging and found a sysfs entry at /sys/devices/platform/i8042/serio1. The directory has entries like bind_mode, description, driver, drvctl, firmware_id, id, input, modalias, power, press_to_select, protocol, rate, resetafter, resolution, resync_time, sensitivity, subsystem, uevent. I'm able to change the sensitivity value and make a noticeable change to the TrackPoint behavior, so I know I'm in the right place in sysfs. I've tried setting resetafter and resync_time to a ton of different values from 0 to 100,000, and it doesn't seem to make any difference. Is there another way to change the recalibration time parameters? Why doesn't changing the resync_time and resetafter seem to work? What I'd really like is to turn off the recalibration altogether, but I don't know if that's possible.

My setup:

Gen3 Lenovo ThinkPad T14, AMD Ryzen Pro 7 6850U Debian Sid with Gnome on Wayland kernel 6.7.9

I've tried changing the values in the sysfs entry to values from 0 - 255 and up to 100000 just incase it was in milli or micro seconds for resetafter and resync_time. The default value for resetafter is 5. It takes about 5 seconds until it resets happens and I'm guessing that is the value that I can't seem to effect. I've also tried setting the values via udev rules as well.

Solved

So doing some more digging I found that those defualt values where being loaded when the psmouse kernel module was being loaded. By running modinfo psmouse I found that setting the values for resync\_time and resetafter to 0 would disable that feature. So I made a file in /etc/modprobe.d/psmouse.conf and inculuding options psmouse resync_after=0 resetafter=0 then just reload the kernel module. modprobe -r psmouse modprobe psmouse

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Thanks for posting the rest of the story.

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