Bug#924913: trackpad on L480 unusable after upgrade to testing

From	Alois Schlögl <alois.schloegl@ist.ac.at>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#924913: trackpad on L480 unusable after upgrade to testing
Date	2019-03-18 11:40 +0100
Message-ID	<xCXQu-jX-3@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Cross-posted to 2 groups.

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Source: linux
Severity: normal

Dear Maintainer,

   On a Lenovo L480 laptop, I've upgraded Debian from 9 (stretch) to 10
(testing).
   After the upgrade, the touchpad and the trackpoint was not usable
anymore.


   This already has some bug report here,
   https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1803600

   As a workaround, one can run the command,
       sudo sh -c 'echo -n "elantech">
/sys/bus/serio/devices/serio1/protocol'
   in order to use the touchpad. However, on a GUI Interface and without
   an external mouse, it's impossible to apply this workaround
  (switching to the terminal <CTRL>-<ALT>F1, login, and run the command
above might work)

   I expect to be able to use the touchpad just out of the box, not needing
   to run the above workaround


-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.19.0-2-amd64 (SMP w/8 CPU cores)
Kernel taint flags: TAINT_WARN, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

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Bug#924913: trackpad on L480 unusable after upgrade to testing Alois Schlögl <alois.schloegl@ist.ac.at> - 2019-03-18 11:40 +0100
  Bug#924913: trackpad on L480 unusable after upgrade to testing Romain Perier <romain.perier@gmail.com> - 2019-03-18 12:30 +0100
    Bug#924913: trackpad on L480 unusable after upgrade to testing Alois Schlögl <alois.schloegl@ist.ac.at> - 2019-03-18 13:00 +0100
      Bug#924913: trackpad on L480 unusable after upgrade to testing Romain Perier <romain.perier@gmail.com> - 2019-03-18 20:00 +0100
        Bug#924913: trackpad on L480 unusable after upgrade to testing Alois Schlögl <alois.schloegl@ist.ac.at> - 2019-03-20 08:40 +0100
          Bug#924913: trackpad on L480 unusable after upgrade to testing Romain Perier <romain.perier@gmail.com> - 2019-03-26 21:10 +0100
            Bug#924913: trackpad on L480 unusable after upgrade to testing Romain Perier <romain.perier@gmail.com> - 2019-03-29 17:20 +0100
            Bug#924913: trackpad on L480 unusable after upgrade to testing Alois Schlögl <alois.schloegl@ist.ac.at> - 2019-05-29 18:10 +0200
              Bug#924913: trackpad on L480 unusable after upgrade to testing Romain Perier <romain.perier@gmail.com> - 2019-05-31 21:30 +0200
  Bug#924913: BIOS update helped Damien Miller <djm@djm.net.au> - 2019-07-22 10:10 +0200

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