On 2021-05-03 07:37:42, Salvatore Bonaccorso wrote:
> Control: found -1 5.10.24-1
>
> Hi Antoine,
>
> On Sun, May 02, 2021 at 08:22:07PM -0400, Antoine Beaupré wrote:
>> On 2021-05-01 07:59:01, Salvatore Bonaccorso wrote:
>> > Hi Antoine
>> >
>> > On Fri, Apr 30, 2021 at 07:34:04PM -0400, Antoine Beaupré wrote:
>> >> 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 ":00:1f.4" >
>> >> >> /sys/bus/pci/drivers/i801_smbus/unbind'
>> >> >> ExecStop=/bin/bash -c 'echo ":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
>> >> >>
