Just so folks know: I happen to have experience with this part of the linux kernel (it's not a libinput bug) so I handled this offlist and redirected Ottavio to the right place to ask for support ♥
On Tue, 2024-04-23 at 15:12 +0100, Ottavio Caruso wrote: > Hi, > > $ sudo X -version > > X.Org X Server 1.21.1.7 > X Protocol Version 11, Revision 0 > Current Operating System: Linux t440 6.1.0-20-amd64 #1 SMP > PREEMPT_DYNAMIC Debian 6.1.85-1 (2024-04-11) x86_64 > Kernel command line: BOOT_IMAGE=/boot/vmlinuz-6.1.0-20-amd64 > root=UUID=42a17f43-89bb-4523-952f-b8d97bcb4a30 ro quiet > xorg-server 2:21.1.7-3+deb12u7 (https://www.debian.org/support) > Current version of pixman: 0.42.2 > > $ xinput --version > xinput version 1.6.3 > XI version on server: 2.4 > > > > On my old-ish Thinkpad T440, libinput alternatively calls my touchpad > "SynPS/2 Synaptics" or "Synaptics TM2722-001". > > $ grep Synaptics /var/log/messages > Nov 26 09:12:38 t440 kernel: [18070.908478] psmouse serio1: > synaptics: > serio: Synaptics pass-through port at isa0060/serio1/input0 > Nov 26 09:12:38 t440 kernel: [18070.947812] input: SynPS/2 Synaptics > TouchPad as /devices/platform/i8042/serio1/input/input35 > Nov 26 20:33:19 t440 kernel: [27221.274488] rmi4_f01 rmi4-00.fn01: > found > RMI device, manufacturer: Synaptics, product: TM2722-001, fw id: 0 > Nov 26 20:33:19 t440 kernel: [27221.314747] input: Synaptics TM2722- > 001 > as /devices/pci0000:00/0000:00:1f.3/i2c-0/0-002c/rmi4- > 00/input/input39 > Nov 27 19:28:05 t440 kernel: [ 6.327297] psmouse serio1: > synaptics: > serio: Synaptics pass-through port at isa0060/serio1/input0 > Nov 27 19:28:05 t440 kernel: [ 6.366655] input: SynPS/2 Synaptics > TouchPad as /devices/platform/i8042/serio1/input/input2 > > This without even rebooting or suspending the laptop. > > I have some scripts that disable or enable the touchpad (especially > when > I use the mouse) and I have to use tricks to accommodate this. > > Why does this happen in the first place? How can I troubleshoot it? > > Thanks. > -- Cheers, Lyude Paul (she/her) Software Engineer at Red Hat
