Blog/ThinkPadTrackPointAfterResume

I recently update my laptop (ThinkPad x270) from Fedora37 to Fedora38.

I noticed that sometimes after resuming from suspend-to-ram the UltraNav buttons would not work.

I haven't found a definitive reason for this, but here are some sparse notes:

Symptoms

• UltraNav buttons not working
• Messages like this in dmesg:

[    2.259514] psmouse serio1: synaptics: Your touchpad (PNP: LEN2046 PNP0f13) says it can support a different bus. If i2c-hid and hid-rmi are not used, you might want to try setting psmouse.synaptics_intertouch to 1 and report this to linux-input@vger.kernel.org.

Workaround

This command will reconnect the touchpad:

echo -n "reconnect" | tee /sys/bus/serio/devices/serio1/drvctl