Re: [gentoo-user] Trackpad nightmare: Elantech ETPS/2
On 05/05/2020 18:44, Michael wrote: > > I'm on an old Lenovo which must have different hardware/firmware. It does > not > suffer from such trackpad problems. Just an idea: have you migrated your > system to libinput driver and removed all old synaptics syntax in /etc/X11/ > xorg.conf.d/ to avoid potential clashes? > Yes, as I mentioned in my original email I use libinput and have done so ever since it became a reasonable replacement. Certainly so for at least the last three to four years. I don't believe it's a library issue as the error messages in dmesg - which are far more disturbing than those in Xorg.log - come directly from the psmouse module. It would appear ELAN trackpad drivers are generally in a very sorry state across the board. In my very rare and limited use of Windows I remember having a similarly abominable experience, albeit due to other symptoms. With Synaptics trackpads, although not perfect, I have yet to experience anything as hellish as this. signature.asc Description: OpenPGP digital signature
Re: [gentoo-user] Trackpad nightmare: Elantech ETPS/2
On 05/05/2020 15:28, inasprecali wrote: > > I experience very similar symptoms on my ThinkPad 13. It doesn't > happen often, but it does sometimes happen. > It's good to hear that there are others sharing the pain - at least to a degree - today, as most topics I've come across stop around 2018, which made me believe the issue had been resolved in the kernel. > > 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 > This is basically what I've been doing. However, it's not as easy when it causes the keyboard to freeze as well, where the only solution is usually a hard reset without access to an external keyboard. It's also incredibly time consuming to do a few times an hour, even without having to reboot. I might bump up the bug report on kernel.org and see if gets any attention. signature.asc Description: OpenPGP digital signature
Re: [gentoo-user] Trackpad nightmare: Elantech ETPS/2
On Tuesday, 5 May 2020 15:28:15 BST inasprecali wrote: > On Tue, 5 May 2020 14:58:32 +0100 > > Victor Ivanov 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 I'm on an old Lenovo which must have different hardware/firmware. It does not suffer from such trackpad problems. Just an idea: have you migrated your system to libinput driver and removed all old synaptics syntax in /etc/X11/ xorg.conf.d/ to avoid potential clashes? signature.asc Description: This is a digitally signed message part.
Re: [gentoo-user] Trackpad nightmare: Elantech ETPS/2
On Tue, 5 May 2020 14:58:32 +0100 Victor Ivanov 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
