On 2021-04-30 21:04:29, Salvatore Bonaccorso wrote: > Control: tags -1 + moreinfo > > Hi Tollef, Antoine, > > On Wed, Sep 11, 2019 at 08:20:22PM -0400, Antoine Beaupré wrote: >> Control: forcemerge 922666 928189 >> Control: severity 922666 important >> Control: tags 922666 +patch +confirmed >> >> I also see a regression with touchpads and trackpoint on a Thinkpad E431 >> after upgrading from Debian stretch to buster. My research indicates >> this is a kernel regression, as yet to be fixed. >> >> This is the result of my research, as available online at: >> >> https://anarc.at/services/upgrades/buster/#touchpad-trackpoint-freeze-after-sleep >> >> On a Thinkpad E431, the entire mouse interface (touch, trackpoint) >> freezes after sleep. Keyboard still works but not mouse until a >> reboot. >> >> There's [bug 922666][] in Debian buster, without a fix. It also says >> it eventually recovers, which is not our experience. Possible dupe is >> [bug 928189][]. >> >> [bug 928189]: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=928189 >> [bug 922666]: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=922666 >> >> There's also [bug 1791427][] in Ubuntu 18.04 that seems related, and >> which proposes the following workarounds: >> >> * In gsettings: `org.gnome.desktop.peripherals.touchpad click-method >> disabled` >> >> * A .service file: >> >> # /etc/systemd/system/touchpad-sleep.service >> # restore touchpad on suspend >> >> [Unit] >> Description=Restore Touchpad on suspend >> Before=sleep.target >> StopWhenUnneeded=yes >> >> [Service] >> #Type=oneshot >> Type=idle >> RemainAfterExit=yes >> ExecStart=/bin/bash -c 'echo "0000:00:1f.4" > >> /sys/bus/pci/drivers/i801_smbus/unbind' >> ExecStop=/bin/bash -c 'echo "0000:00:1f.4" > >> /sys/bus/pci/drivers/i801_smbus/bind' >> >> [Install] >> WantedBy=sleep.target >> >> * "Maybe try xserver-xorg-input-evdev instead of >> xserver-xorg-input-libinput?" >> >> * reloading `psmouse`: >> >> sudo modprobe -r psmouse >> sudo modprobe psmouse >> >> * "`modprobe i2c-i801` after removing it from the `blacklist.conf` seems to >> solve the issue." >> >> * whatever this is: >> >> # echo 1 > /sys/devices/rmi4-00/nosleep >> >> * "Anyone who still affected by touchpad issues after S3. Please >> switch back to suspend-to-idle in BIOS if s2idle is >> supported. ThinkPad Carbon 6th and Yoga 3rd do support >> suspend-to-idle in BIOS->config->power menu." >> >> [bug 1791427]: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1791427 >> >> There's also [bug 1442699][] in Fedora, which suggests those >> workarounds: >> >> * another module reload: >> >> sudo rmmod i2c_hid >> sudo modprobe i2c_hid >> >> * "Just updated to kernel-4.12.5-300.fc26.x86_64 in updates-testing >> and this issue seems to have been resolved (for me)." >> >> * another `/proc` hack: >> >> echo -n "reconnect" > /sys/bus/serio/devices/serio1/drvctl >> >> * "The `psmouse.synaptics_intertouch=0` workaround still works for me." >> >> [bug 1442699]: https://bugzilla.redhat.com/show_bug.cgi?id=1442699 >> >> Also related is this [libinput bug][] that's closed as "not our bug" >> because they claim it's a bug in the kernel. >> >> [libinput bug]: https://bugs.freedesktop.org/show_bug.cgi?id=103149 >> >> There are [two][] [patches][] on the Linux kernel which apparently fix the >> issue, still pending approval: >> >> [two]: https://lkml.org/lkml/2019/2/20/700 >> [patches]: https://lkml.org/lkml/2019/2/20/701 >> >> Possibly related: https://lkml.org/lkml/2016/8/18/134 >> >> [5.1rc7][] shipped two fixes against the `synaptics-rmi4` module. A >> [pull request][] has been merged in mainline with two other fixes on >> the module./ [5.0.11][] also has fixes on the module. It's clearly a >> regression from Debian stretch (kernel 4.9) since it was working fine >> before. >> >> Possibly related, [two-finger scrolling bug in Ubuntu][], which >> identifies [this commit][] as the source of the regression. [Upstream >> kernel bug][], still open. >> >> [5.1rc7]: https://lkml.org/lkml/2019/4/28/270 >> [pull request]: https://lkml.org/lkml/2019/7/12/19 >> [5.0.11]: https://lkml.org/lkml/2019/5/2/287 >> [Upstream kernel bug]: https://bugzilla.kernel.org/show_bug.cgi?id=196719 >> [this commit]: >> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e839ffab028981ac77f650faf8c84f16e1719738 >> [two-finger scrolling bug in Ubuntu]: >> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1722478 >> >> I haven't tried any of those workarounds. I hope this helps! > > Can you confirm if this issue is still present with a recent kernel?
e.g. buster-backports? -- The flesh you so fancifully fry Is not succulent, tasty or kind It's death for no reason And death for no reason is murder - Morrissey