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Version: v1.3.3

Lid Events

Lid state monitoring uses D-Bus to listen for UPower lid events. This feature is optional and needs to be explicitly enabled.

Lid events

Enabling Lid Events​

To enable lid state monitoring:

hyprdynamicmonitors run --enable-lid-events

When disabled (default):

  • The system defaults to UNKNOWN lid state
  • No lid events will be delivered
  • No D-Bus connection for lid events will be made

Default Configuration​

By default, when enabled, the service listens for D-Bus signals:

  • Signal: org.freedesktop.DBus.Properties.PropertiesChanged
  • Interface: org.freedesktop.DBus.Properties
  • Member: PropertiesChanged
  • Path: /org/freedesktop/UPower

Monitoring Lid Events​

You can monitor lid events with:

gdbus monitor --system --dest org.freedesktop.UPower --object-path /org/freedesktop/UPower

Example output:

/org/freedesktop/UPower: org.freedesktop.DBus.Properties.PropertiesChanged ('org.freedesktop.UPower', {'LidIsClosed': <true>}, @as [])
/org/freedesktop/UPower: org.freedesktop.DBus.Properties.PropertiesChanged ('org.freedesktop.UPower', {'LidIsClosed': <false>}, @as [])

Querying Lid Status​

On each event, the current lid status is queried. Equivalent command:

dbus-send --system --print-reply \
  --dest=org.freedesktop.UPower /org/freedesktop/UPower \
  org.freedesktop.DBus.Properties.Get \
  string:org.freedesktop.UPower string:LidIsClosed

Custom D-Bus Configuration​

Custom Signal Match Rules​

You can customize which D-Bus signals to monitor for lid events:

[lid_events]
[[lid_events.dbus_signal_match_rules]]
interface = "org.freedesktop.DBus.Properties"
member = "PropertiesChanged"
object_path = "/org/freedesktop/UPower"
# sender = "org.freedesktop.UPower"  # Optional: specific sender

[[lid_events.dbus_signal_receive_filters]]
name = "org.freedesktop.DBus.Properties.PropertiesChanged"
body = "LidIsClosed"  # Filter signals containing this in the body

The body filter is useful for limiting the signals processed, as D-Bus property change events can be noisy.

Custom Query Configuration​

You can customize how lid state is queried:

[lid_events.dbus_query_object]
destination = "org.freedesktop.UPower"
path = "/org/freedesktop/UPower"
method = "org.freedesktop.DBus.Properties.Get"
expected_lid_closing_value = "true"

[[lid_events.dbus_query_object.args]]
arg = "org.freedesktop.UPower"

[[lid_events.dbus_query_object.args]]
arg = "LidIsClosed"

This configuration is equivalent to the default and queries the lid state using standard UPower D-Bus properties.

See the lid-states example for a complete configuration.

Receive Filters​

By default, the service matches:

  • org.freedesktop.DBus.Properties.PropertiesChanged name
  • LidIsClosed body

This prevents noisy signals. Lid status changes are only propagated when the state actually changes.

Using Lid State​

Lid state is available in templates via functions:

{{if isLidClosed}}
# Disable laptop screen when lid is closed
monitor=eDP-1,disable
{{else}}
monitor=eDP-1,2880x1920@120,0x0,2.0
{{end}}

Available template functions:

  • isLidClosed - Returns true if the lid is closed
  • isLidOpened - Returns true if the lid is opened
  • .LidState - Returns the lid state string ("Closed", "Opened", or "UNKNOWN")

Lid State Values​

The .LidState variable can have these values:

  • "UNKNOWN" - Lid events are disabled or state cannot be determined
  • "Closed" - Lid is closed
  • "Opened" - Lid is open

Common Use Cases​

Disable Laptop Screen When Docked with Lid Closed​

{{- $laptop := index .MonitorsByTag "laptop" -}}
{{- $external := index .MonitorsByTag "external" -}}

{{if isLidClosed}}
monitor={{$laptop.Name}},disable
{{else}}
monitor={{$laptop.Name}},2880x1920@120,0x0,2.0
{{end}}

monitor={{$external.Name}},preferred,auto,1

Different Layouts Based on Lid State​

{{if isLidClosed}}
# Closed lid: external monitor only
monitor=eDP-1,disable
monitor=DP-1,3840x2160@60,0x0,1
{{else}}
# Open lid: dual monitor setup
monitor=eDP-1,2880x1920@120,0x0,2.0
monitor=DP-1,3840x2160@60,2880x0,1
{{end}}

See Also​