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=====
gdctl
=====
------------------------
GNOME Display Controller
------------------------
:Manual section: 1
:Manual group: User Commands
SYNOPSIS
--------
**gdctl** [-h] COMMAND ...
DESCRIPTION
-----------
gdctl provides means to show the active monitor configuration, and set new
monitor configuration using command line arguments.
It requires a compositor that supports the ``org.gnome.Mutter.DisplayConfig``
D-Bus API, such as GNOME Shell.
COMMANDS
--------
``show``
Show the current display configuration
``set``
Set a new display configuration
``pref``
Set display related preferences.
SHOW OPTIONS
------------
``--help``, ``-h``
Show a help message and exit.
``--modes``, ``-m``
List available monitor modes.
``--properties``, ``-p``
List properties.
``--verbose``, ``-v``
Display all available information (equivalent to ``--modes --properties``).
SET OPTIONS
-----------
``--help``, ``-h``
Show a help message and exit.
``--persistent``, ``-P``
Store applied configuration on persistent storage and restore when applicable.
``--verbose``, ``-v``
Print configuration to standard out before applying it.
``--verify``, ``-V``
Only verify, without applying, the configuration.
``--layout-mode LAYOUT-MODE``, ``-l``
Specify the layout mode the configuration should use. Either ``logical``, or
``physical``.
``--logical-monitor``, ``-L``
Add and configure a logical monitor. See LOGICAL MONITOR OPTIONS.
``--for-lease-monitor CONNECTOR``, ``-e CONNECTOR``
Set a monitor, that is not part of any logical monitor, available for lease.
LOGICAL MONITOR OPTIONS
-----------------------
``--monitor CONNECTOR``, ``-M CONNECTOR``
Add a monitor to the currently configured logical monitor. All monitors
within the same logical monitor must have the same monitor resolution.
``--primary``, ``-p``
Mark currently configured logical monitor as primary.
``--scale SCALE``, ``-s SCALE``
Scale monitors within the currently configured logical monitor with
``SCALE``. Must be a scale supported by all monitors and their configured
modes.
``--transform TRANSFORM``, ``-t TRANSFORM``
Transform monitors within the currently configured logical monitor using
``TRANSFORM``. Possible transforms are ``normal``, ``90``, ``180``, ``270``,
``flipped``, ``flipped-90``, ``flipped-270`` and ``flipped-180``.
``--x X``, ``-x X``
Set the X position of the currently configured logical monitor.
``--y Y``, ``-y Y`` Y position
Set the Y position of the currently configured logical monitor.
``--right-of CONNECTOR``
Place the logical monitor to the right of the logical monitor ``CONNECTOR``
belongs to.
``--left-of CONNECTOR`` Place left of other monitor
Place the logical monitor to the left of the logical monitor ``CONNECTOR``
belongs to.
``--above CONNECTOR``
Place the logical monitor above the logical monitor ``CONNECTOR`` belongs to.
``--below CONNECTOR``
Place the logical monitor below the logical monitor ``CONNECTOR`` belongs to.
MONITOR OPTIONS
---------------
``--mode MODE``, ``-m MODE``
Set the mode of the monitor.
``--color-mode COLOR-MODE``, ``-c COLOR-MODE``
Set the color mode of the monitor. Available color modes are ``default`` and
``bt2100``.
``--rgb-range RGB-RANGE``, ``-r RGB-RANGE``
Set the RGB quantization range of the monitor. Available ranges are ``auto``,
``full`` and ``limited`` (16:235).
PREFS OPTIONS
-------------
``--monitor CONNECTOR``, ``-M CONNECTOR``
Change monitor preferences. See MONITOR PREFS OPTIONS.
MONITOR PREFS OPTIONS
---------------------
``--luminance LUMINANCE``, ``-l LUMINANCE``
Set the luminance of the monitor for the current color mode.
``--reset-luminance``
Reset the luminance of the monitor for the current color mode to its default.
EXAMPLES
--------
Mirror DP-1 and eDP-1, and place DP-2, transformed by 270 degrees, to the right
of the two mirrored monitors.
::
gdctl set --logical-monitor
--primary
--monitor DP-1
--monitor eDP-1
--logical-monitor
--monitor DP-2
--right-of DP-1
--transform 270
Set eDP-1 and DP-2 as available for lease.
::
gdctl set --logical-monitor
--primary
--monitor DP-1
--for-lease-monitor eDP-1
--for-lease-monitor DP-2
BUGS
----
The bug tracker can be reached by visiting the website
https://gitlab.gnome.org/GNOME/mutter/-/issues.
Before sending a bug report, please verify that you have the latest version
of gnome-shell. Many bugs (major and minor) are fixed at each release, and
if yours is out of date, the problem may already have been solved.
ADDITIONAL INFORMATION
----------------------
For further information, visit the website
https://gitlab.gnome.org/GNOME/mutter/-/blob/main/README.md.
|
