output DP-3 Dell Inc. DELL U3219Q 9JKK413 1.0 270
output HDMI-A-1 Sony SONY TV 0x00000101 1.0 normal
output eDP-1 Unknown 0x1403 0x00000000 None None

tags = [
    "",
    "master-of-seat",
    "mutter-device-disable-kms-modifiers",
    "seat",
    "snap_slack_slack",
    "uaccess",
]

Watcher is generating too many events. Should consider the state of the laptop lid. If the lid is closed that is significant.

Use MonitorObserver to monitor for events in a background thread.

There can be a short delay before acting on an event.