[Wayland-bugs] [Bug 96969] Ignore the mute touchpad when synaptics i2c is used

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96969

            Bug ID: 96969
           Summary: Ignore the mute touchpad when synaptics i2c is used
           Product: Wayland
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: libinput
          Assignee: wayland-bugs at lists.freedesktop.org
          Reporter: peter.hutterer at who-t.net
                CC: benjamin.tissoires at gmail.com,
                    russell+freedesktop.org at stuart.id.au

When we have an i2c touchpad (see e.g. Bug 96925) we have two event nodes. One
named "DLL06E4:01 06CB:7A13 Touchpad" (or similar) that is the actual touchpad
device. The other one is named "SynPS/2 Synaptics TouchPad" and effectively
mute, it never sends events.

This causes user confusion when configuring the device but also makes it appear
like we have multiple touch devices (potential dwt issues?).


Russel: please attach the output of udevadm info --export-db so we can figure
out how to detect this in userspace.

Benjamin: is this something we can fix in the kernel?

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