On Tue, 5 May 2020 14:58:32 +0100 Victor Ivanov <[email protected]> wrote: > My laptop's trackpad is an ETPS/2 Elantech on a ThinkPad Yoga > 260 (ca. 2016). Every so often it freezes and refuses to respond > to any and all input. The freeze usually lasts for a second or > so, but can sometimes be longer in the range of 10-15 seconds or > even freeze indefinitely until the "psmouse" kernel module is > reloaded. It also experiences "jumping" behaviour, most commonly > encountered when press-holding one of the companion buttons > along with a dragging gesture, but that's not an exclusive > scenario.
I experience very similar symptoms on my ThinkPad 13. It doesn't happen often, but it does sometimes happen. > A quick Google search can reveal complaints about this issues > across distributions (Ubuntu, Fedora, Debian) that can be traced > back to at least 2012 in various laptop models. There also > appears to be a related upstream kernel bug [1] that has been > left in limbo. I noticed this as well, it's almost certainly a bug in Linux itself which, for some reason, has never been fixed after all these years. I don't think Gentoo can do much about it. Unfortunately I'm not aware of any real solution, but as a workaround, you can unmount and re-mount the psmouse module when the problem occurs (if psmouse is not built compiled as a module, I suggest you do it). At least this is what works for me, YMMV: # modprobe -r psmouse # modprobe psmouse
