I see many of these messages in my xorg log: [ 5510.681] (EE) libevdev: BUG: Device "Synaptics TM3288-011" received a double tracking ID 2451 in slot 0. [ 5511.070] (EE) libevdev: BUG: Device "Synaptics TM3288-011" received a double tracking ID 2454 in slot 0. [ 5511.800] (EE) libevdev: BUG: Device "Synaptics TM3288-011" received a double tracking ID 2456 in slot 0. This is on a Thinkpad X1 Carbon 2018 edition (gen6). I didn't find any existing bug here, but this redhat bug: https://bugzilla.redhat.com/show_bug.cgi?id=1565692 But it was not clear to me if this is supposed to be already fixed. All relevant libs on my system are up to date (libinput 1.11.0, libevdev 1.5.9, xf86-input-libinput 0.27.1). I'm using Gentoo Linux. The touchpad works with problems. I have erratic behavior with tap-to-click. I have 'Option "Tapping" "on"' in my xorg config, but it only works sometimes. Though I'm not sure if this is related.
Please see https://gitlab.freedesktop.org/libinput/libinput/issues/46 for this issue. It has a link to the kernel commit that fixes this issue. And yes, it's an extension of the redhat bugzilla you linked to.
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