[Wayland-bugs] [Bug 101099] Make sure LID_SWITCH_RELIABILITY=write_open is useful

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=101099

            Bug ID: 101099
           Summary: Make sure LID_SWITCH_RELIABILITY=write_open is useful
           Product: Wayland
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: libinput
          Assignee: wayland-bugs at lists.freedesktop.org
          Reporter: benjamin.tissoires at gmail.com

See the 3 top commits of https://github.com/bentiss/libinput
We were not able to trigger the required conditions to have the switch
overwritten by libinput.

I haven't finished writing the tests, but:
- an assert is raised with the current code when
  * a keyboard gets paired with the lid switch
  * the lid switch node report closed while it is physically opened
  * a key gets pressed on the paired keyboard, which opens the lid switch
  * the keyboard gets unplugged (on the Surface 3, closing the cover removes
the attached USB devices)

- we can't start observing keyboard events is the state is reported as opened
by evdev-lid.c

- we need to start listening to the events when pairing the keyboard if the
reported state is "closed"

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