[Wayland-bugs] [Bug 100955] Acer C720 Touchpad Pressure Range

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100955

            Bug ID: 100955
           Summary: Acer C720 Touchpad Pressure Range
           Product: Wayland
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: libinput
          Assignee: wayland-bugs at lists.freedesktop.org
          Reporter: freedesktop at wbarnett.us

The update from libinput 1.7.1 to 1.7.2 causes the touchpad on Acer C720 to
need more pressure than before. I followed this page to adjust the settings and
am filing this bug to get the pressure changes in the repository
https://wayland.freedesktop.org/libinput/doc/latest/touchpad_pressure.html.

Here are the settings that seem comfortable to me:

$ cat /etc/udev/hwdb.d/99-touchpad-pressure.hwdb
libinput:name:*Cypress APA Trackpad
(cyapa):dmi:*bvncoreboot:bvr4.0-6588-g4acd8ea-dirty:bd09/04/2014:svnGOOGLE:pnPeppy:pvr1.0:rvnGOOGLE:rnPeppy:rvr1.0:cvnGOOGLE:ct3:cvr:
 LIBINPUT_ATTR_PRESSURE_RANGE=23:20

>From evemu:
# EVEMU 1.3
# Kernel: 4.10.13-1-ARCH
# DMI:
dmi:bvncoreboot:bvr4.0-6588-g4acd8ea-dirty:bd09/04/2014:svnGOOGLE:pnPeppy:pvr1.0:rvnGOOGLE:rnPeppy:rvr1.0:cvnGOOGLE:ct3:cvr:
# Input device name: "Cypress APA Trackpad (cyapa)"
# Input device ID: bus 0x18 vendor 0000 product 0000 version 0x01
# Size in mm: 87x47

$ cat /sys/class/dmi/id/modalias
dmi:bvncoreboot:bvr4.0-6588-g4acd8ea-dirty:bd09/04/2014:svnGOOGLE:pnPeppy:pvr1.0:rvnGOOGLE:rnPeppy:rvr1.0:cvnGOOGLE:ct3:cvr:

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