b49421d8e8
Adding a <dbus/> element containing a boolean (yes/no) determines
whether org.gnome.Mutter.DisplayConfig ApplyMonitorsConfig will be
callable. The state is also introspectable via the
ApplyMonitorsConfigAllowed property on the same interface.
For example
<monitors version="2">
<policy>
<dbus>no</dbus>
</policy>
</monitors>
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2030>
487 lines
18 KiB
XML
487 lines
18 KiB
XML
<!DOCTYPE node PUBLIC
|
|
'-//freedesktop//DTD D-BUS Object Introspection 1.0//EN'
|
|
'http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd'>
|
|
<node>
|
|
<!--
|
|
org.gnome.Mutter.DisplayConfig:
|
|
@short_description: display configuration interface
|
|
|
|
This interface is used by mutter and gnome-settings-daemon
|
|
to apply multiple monitor configuration.
|
|
-->
|
|
|
|
<interface name="org.gnome.Mutter.DisplayConfig">
|
|
|
|
<!--
|
|
GetResources:
|
|
@serial: configuration serial
|
|
@crtcs: available CRTCs
|
|
@outputs: available outputs
|
|
@modes: available modes
|
|
@max_screen_width:
|
|
@max_screen_height:
|
|
|
|
Retrieves the current layout of the hardware.
|
|
|
|
@serial is an unique identifier representing the current state
|
|
of the screen. It must be passed back to ApplyConfiguration()
|
|
and will be increased for every configuration change (so that
|
|
mutter can detect that the new configuration is based on old
|
|
state).
|
|
|
|
A CRTC (CRT controller) is a logical monitor, ie a portion
|
|
of the compositor coordinate space. It might correspond
|
|
to multiple monitors, when in clone mode, but not that
|
|
it is possible to implement clone mode also by setting different
|
|
CRTCs to the same coordinates.
|
|
|
|
The number of CRTCs represent the maximum number of monitors
|
|
that can be set to expand and it is a HW constraint; if more
|
|
monitors are connected, then necessarily some will clone. This
|
|
is complementary to the concept of the encoder (not exposed in
|
|
the API), which groups outputs that necessarily will show the
|
|
same image (again a HW constraint).
|
|
|
|
A CRTC is represented by a DBus structure with the following
|
|
layout:
|
|
* u ID: the ID in the API of this CRTC
|
|
* x winsys_id: the low-level ID of this CRTC (which might
|
|
be a XID, a KMS handle or something entirely
|
|
different)
|
|
* i x, y, width, height: the geometry of this CRTC
|
|
(might be invalid if the CRTC is not in
|
|
use)
|
|
* i current_mode: the current mode of the CRTC, or -1 if this
|
|
CRTC is not used
|
|
Note: the size of the mode will always correspond
|
|
to the width and height of the CRTC
|
|
* u current_transform: the current transform (espressed according
|
|
to the wayland protocol)
|
|
* au transforms: all possible transforms
|
|
* a{sv} properties: other high-level properties that affect this
|
|
CRTC; they are not necessarily reflected in
|
|
the hardware.
|
|
No property is specified in this version of the API.
|
|
|
|
Note: all geometry information refers to the untransformed
|
|
display.
|
|
|
|
An output represents a physical screen, connected somewhere to
|
|
the computer. Floating connectors are not exposed in the API.
|
|
An output is a DBus struct with the following fields:
|
|
* u ID: the ID in the API
|
|
* x winsys_id: the low-level ID of this output (XID or KMS handle)
|
|
* i current_crtc: the CRTC that is currently driving this output,
|
|
or -1 if the output is disabled
|
|
* au possible_crtcs: all CRTCs that can control this output
|
|
* s name: the name of the connector to which the output is attached
|
|
(like VGA1 or HDMI)
|
|
* au modes: valid modes for this output
|
|
* au clones: valid clones for this output, ie other outputs that
|
|
can be assigned the same CRTC as this one; if you
|
|
want to mirror two outputs that don't have each other
|
|
in the clone list, you must configure two different
|
|
CRTCs for the same geometry
|
|
* a{sv} properties: other high-level properties that affect this
|
|
output; they are not necessarily reflected in
|
|
the hardware.
|
|
Known properties:
|
|
- "vendor" (s): (readonly) the human readable name
|
|
of the manufacturer
|
|
- "product" (s): (readonly) the human readable name
|
|
of the display model
|
|
- "serial" (s): (readonly) the serial number of this
|
|
particular hardware part
|
|
- "display-name" (s): (readonly) a human readable name
|
|
of this output, to be shown in the UI
|
|
- "backlight" (i): (readonly, use the specific interface)
|
|
the backlight value as a percentage
|
|
(-1 if not supported)
|
|
- "primary" (b): whether this output is primary
|
|
or not
|
|
- "presentation" (b): whether this output is
|
|
for presentation only
|
|
Note: properties might be ignored if not consistently
|
|
applied to all outputs in the same clone group. In
|
|
general, it's expected that presentation or primary
|
|
outputs will not be cloned.
|
|
|
|
A mode represents a set of parameters that are applied to
|
|
each output, such as resolution and refresh rate. It is a separate
|
|
object so that it can be referenced by CRTCs and outputs.
|
|
Multiple outputs in the same CRTCs must all have the same mode.
|
|
A mode is exposed as:
|
|
* u ID: the ID in the API
|
|
* x winsys_id: the low-level ID of this mode
|
|
* u width, height: the resolution
|
|
* d frequency: refresh rate
|
|
* u flags: mode flags as defined in xf86drmMode.h and randr.h
|
|
|
|
Output and modes are read-only objects (except for output properties),
|
|
they can change only in accordance to HW changes (such as hotplugging
|
|
a monitor), while CRTCs can be changed with ApplyConfiguration().
|
|
|
|
XXX: actually, if you insist enough, you can add new modes
|
|
through xrandr command line or the KMS API, overriding what the
|
|
kernel driver and the EDID say.
|
|
Usually, it only matters with old cards with broken drivers, or
|
|
old monitors with broken EDIDs, but it happens more often with
|
|
projectors (if for example the kernel driver doesn't add the
|
|
640x480 - 800x600 - 1024x768 default modes). Probably something
|
|
that we need to handle in mutter anyway.
|
|
-->
|
|
<method name="GetResources">
|
|
<arg name="serial" direction="out" type="u" />
|
|
<arg name="crtcs" direction="out" type="a(uxiiiiiuaua{sv})" />
|
|
<arg name="outputs" direction="out" type="a(uxiausauaua{sv})" />
|
|
<arg name="modes" direction="out" type="a(uxuudu)" />
|
|
<arg name="max_screen_width" direction="out" type="i" />
|
|
<arg name="max_screen_height" direction="out" type="i" />
|
|
</method>
|
|
|
|
<!--
|
|
ApplyConfiguration:
|
|
@serial: configuration serial
|
|
@persistent: whether this configuration should be saved on disk
|
|
@crtcs: new data for CRTCs
|
|
@outputs: new data for outputs
|
|
|
|
Applies the requested configuration changes.
|
|
|
|
@serial must match the serial from the last GetResources() call,
|
|
or org.freedesktop.DBus.AccessDenied will be generated.
|
|
|
|
If @persistent is true, mutter will attempt to replicate this
|
|
configuration the next time this HW layout appears.
|
|
|
|
@crtcs represents the new logical configuration, as a list
|
|
of structures containing:
|
|
- u ID: the API ID from the corresponding GetResources() call
|
|
- i new_mode: the API ID of the new mode to configure the CRTC
|
|
with, or -1 if the CRTC should be disabled
|
|
- i x, y: the new coordinates of the top left corner
|
|
the geometry will be completed with the size information
|
|
from @new_mode
|
|
- u transform: the desired transform
|
|
- au outputs: the API ID of outputs that should be assigned to
|
|
this CRTC
|
|
- a{sv} properties: properties whose value should be changed
|
|
|
|
Note: CRTCs not referenced in the array will be disabled.
|
|
|
|
@outputs represent the output property changes as:
|
|
- u ID: the API ID of the output to change
|
|
- a{sv} properties: properties whose value should be changed
|
|
|
|
Note: both for CRTCs and outputs, properties not included in
|
|
the dictionary will not be changed.
|
|
|
|
Note: unrecognized properties will have no effect, but if the
|
|
configuration change succeeds the property will be reported
|
|
by the next GetResources() call, and if @persistent is true,
|
|
it will also be saved to disk.
|
|
|
|
If the configuration is invalid according to the previous
|
|
GetResources() call, for example because a CRTC references
|
|
an output it cannot drive, or not all outputs support the
|
|
chosen mode, the error org.freedesktop.DBus.InvalidArgs will
|
|
be generated.
|
|
|
|
If the configuration cannot be applied for any other reason
|
|
(eg. the screen size would exceed texture limits), the error
|
|
org.freedesktop.DBus.Error.LimitsExceeded will be generated.
|
|
-->
|
|
<method name="ApplyConfiguration">
|
|
<arg name="serial" direction="in" type="u" />
|
|
<arg name="persistent" direction="in" type="b" />
|
|
<arg name="crtcs" direction="in" type="a(uiiiuaua{sv})" />
|
|
<arg name="outputs" direction="in" type="a(ua{sv})" />
|
|
</method>
|
|
|
|
<!--
|
|
ChangeBacklight:
|
|
@serial: configuration serial
|
|
@output: the API id of the output
|
|
@value: the new backlight value
|
|
|
|
Changes the backlight of @output to @value, which is
|
|
expressed as a percentage and rounded to the HW limits.
|
|
|
|
Returns the new value after rounding.
|
|
-->
|
|
<method name="ChangeBacklight">
|
|
<arg name="serial" direction="in" type="u" />
|
|
<arg name="output" direction="in" type="u" />
|
|
<arg name="value" direction="in" type="i" />
|
|
<arg name="new_value" direction="out" type="i" />
|
|
</method>
|
|
|
|
<!--
|
|
GetCrtcGamma:
|
|
@serial: configuration serial
|
|
@crtc: API id of the crtc
|
|
@red: red gamma ramp
|
|
@green: green gamma ramp
|
|
@blue: blue gamma ramp
|
|
|
|
Requests the current gamma ramps of @crtc.
|
|
-->
|
|
<method name="GetCrtcGamma">
|
|
<arg name="serial" direction="in" type="u" />
|
|
<arg name="crtc" direction="in" type="u" />
|
|
<arg name="red" direction="out" type="aq" />
|
|
<arg name="green" direction="out" type="aq" />
|
|
<arg name="blue" direction="out" type="aq" />
|
|
</method>
|
|
|
|
<!--
|
|
SetCrtcGamma:
|
|
@serial: configuration serial
|
|
@crtc: API id of the crtc
|
|
@red: red gamma ramp
|
|
@green: green gamma ramp
|
|
@blue: blue gamma ramp
|
|
|
|
Changes the gamma ramps of @crtc.
|
|
-->
|
|
<method name="SetCrtcGamma">
|
|
<arg name="serial" direction="in" type="u" />
|
|
<arg name="crtc" direction="in" type="u" />
|
|
<arg name="red" direction="in" type="aq" />
|
|
<arg name="green" direction="in" type="aq" />
|
|
<arg name="blue" direction="in" type="aq" />
|
|
</method>
|
|
|
|
<!--
|
|
PowerSaveMode:
|
|
|
|
Contains the current power saving mode for the screen, and
|
|
allows changing it.
|
|
|
|
Possible values:
|
|
- 0: on
|
|
- 1: standby
|
|
- 2: suspend
|
|
- 3: off
|
|
- -1: unknown (unsupported)
|
|
|
|
A client should not attempt to change the powersave mode
|
|
from -1 (unknown) to any other value, and viceversa.
|
|
Note that the actual effects of the different values
|
|
depend on the hardware and the kernel driver in use, and
|
|
it's perfectly possible that all values different than on
|
|
have the same effect.
|
|
Also, setting the PowerSaveMode to 3 (off) may or may
|
|
not have the same effect as disabling all outputs by
|
|
setting no CRTC on them with ApplyConfiguration(), and
|
|
may or may not cause a configuration change.
|
|
|
|
Also note that this property might become out of date
|
|
if changed through different means (for example using the
|
|
XRandR interface directly).
|
|
-->
|
|
<property name="PowerSaveMode" type="i" access="readwrite" />
|
|
|
|
<!--
|
|
PanelOrientationManaged:
|
|
|
|
Whether the built-in panel orientation is automatically managed
|
|
by mutter.
|
|
-->
|
|
<property name="PanelOrientationManaged" type="b" access="read" />
|
|
|
|
<!--
|
|
ApplyMonitorsConfigAllowed:
|
|
|
|
Whether calling the ApplyMonitorsConfig method is allowed.
|
|
-->
|
|
<property name="ApplyMonitorsConfigAllowed" type="b" access="read" />
|
|
|
|
<!--
|
|
MonitorsChanged:
|
|
|
|
The signal is emitted every time the screen configuration
|
|
changes.
|
|
The client should then call GetResources() to read the new layout.
|
|
-->
|
|
<signal name="MonitorsChanged" />
|
|
|
|
<!--
|
|
GetCurrentState:
|
|
@serial: configuration serial
|
|
@monitors: available monitors
|
|
@logical_monitors: current logical monitor configuration
|
|
@properties: display configuration properties
|
|
|
|
@monitors represent connected physical monitors
|
|
|
|
* s connector: connector name (e.g. HDMI-1, DP-1, etc)
|
|
* s vendor: vendor name
|
|
* s product: product name
|
|
* s serial: product serial
|
|
* a(siiddada{sv}) modes: available modes
|
|
* s id: mode ID
|
|
* i width: width in physical pixels
|
|
* i height: height in physical pixels
|
|
* d refresh rate: refresh rate
|
|
* d preferred scale: scale preferred as per calculations
|
|
* ad supported scales: scales supported by this mode
|
|
* a{sv} properties: optional properties, including:
|
|
- "is-current" (b): the mode is currently active mode
|
|
- "is-preferred" (b): the mode is the preferred mode
|
|
- "is-interlaced" (b): the mode is an interlaced mode
|
|
* a{sv} properties: optional properties, including:
|
|
- "width-mm" (i): physical width of monitor in millimeters
|
|
- "height-mm" (i): physical height of monitor in millimeters
|
|
- "is-underscanning" (b): whether underscanning is enabled
|
|
(absence of this means underscanning
|
|
not being supported)
|
|
- "max-screen-size" (ii): the maximum size a screen may have
|
|
(absence of this means unlimited screen
|
|
size)
|
|
- "is-builtin" (b): whether the monitor is built in, e.g. a
|
|
laptop panel (absence of this means it is
|
|
not built in)
|
|
- "display-name" (s): a human readable display name of the monitor
|
|
- "privacy-screen-state" (bb): the state of the privacy screen
|
|
(absence of this means it is not being
|
|
supported) first value indicates whether
|
|
it's enabled and second value whether it's
|
|
hardware locked (and so can't be changed
|
|
via gsettings)
|
|
|
|
Possible mode flags:
|
|
1 : preferred mode
|
|
2 : current mode
|
|
|
|
|
|
@logical_monitors represent current logical monitor configuration
|
|
|
|
* i x: x position
|
|
* i y: y position
|
|
* d scale: scale
|
|
* u transform: transform (see below)
|
|
* b primary: true if this is the primary logical monitor
|
|
* a(sss) monitors: monitors displaying this logical monitor
|
|
* connector: name of the connector (e.g. DP-1, eDP-1 etc)
|
|
* vendor: vendor name
|
|
* product: product name
|
|
* serial: product serial
|
|
* a{sv} properties: possibly other properties
|
|
|
|
Posisble transform values:
|
|
0: normal
|
|
1: 90°
|
|
2: 180°
|
|
3: 270°
|
|
4: flipped
|
|
5: 90° flipped
|
|
6: 180° flipped
|
|
7: 270° flipped
|
|
|
|
|
|
@layout_mode current layout mode represents the way logical monitors
|
|
are laid out on the screen. Possible modes include:
|
|
|
|
1 : physical
|
|
2 : logical
|
|
|
|
With physical layout mode, each logical monitor has the same dimensions
|
|
as the monitor modes of the associated monitors assigned to it, no
|
|
matter what scale is in use.
|
|
|
|
With logical mode, the dimension of a logical monitor is the dimension
|
|
of the monitor mode, divided by the logical monitor scale.
|
|
|
|
|
|
Possible @properties are:
|
|
|
|
* "layout-mode" (u): Represents in what way logical monitors are laid
|
|
out on the screen. The layout mode can be either
|
|
of the ones listed below. Absence of this property
|
|
means the layout mode cannot be changed, and that
|
|
"logical" mode is assumed to be used.
|
|
* 1 : logical - the dimension of a logical monitor is derived from
|
|
the monitor modes associated with it, then scaled
|
|
using the logical monitor scale.
|
|
* 2 : physical - the dimension of a logical monitor is derived from
|
|
the monitor modes associated with it.
|
|
* "supports-changing-layout-mode" (b): True if the layout mode can be
|
|
changed. Absence of this means the
|
|
layout mode cannot be changed.
|
|
* "global-scale-required" (b): True if all the logical monitors must
|
|
always use the same scale. Absence of
|
|
this means logical monitor scales can
|
|
differ.
|
|
* "legacy-ui-scaling-factor" (i): The legacy scaling factor traditionally
|
|
used to scale X11 clients (commonly
|
|
communicated via the
|
|
Gdk/WindowScalingFactor XSetting entry).
|
|
-->
|
|
<method name="GetCurrentState">
|
|
<arg name="serial" direction="out" type="u" />
|
|
<arg name="monitors" direction="out" type="a((ssss)a(siiddada{sv})a{sv})" />
|
|
<arg name="logical_monitors" direction="out" type="a(iiduba(ssss)a{sv})" />
|
|
<arg name="properties" direction="out" type="a{sv}" />
|
|
</method>
|
|
|
|
<!--
|
|
ApplyMonitorsConfig:
|
|
@serial: configuration serial
|
|
@method: configuration method
|
|
@logical_monitors: monitors configuration
|
|
@properties: properties
|
|
|
|
@method represents the way the configuration should be handled.
|
|
|
|
Possible methods:
|
|
0: verify
|
|
1: temporary
|
|
2: persistent
|
|
|
|
@logical_monitors consists of a list of logical monitor configurations.
|
|
Each logical monitor configuration consists of:
|
|
|
|
* i: layout x position
|
|
* i: layout y position
|
|
* d: scale
|
|
* u: transform (see GetCurrentState)
|
|
* b primary: true if this is the primary logical monitor
|
|
* a(ssa{sv}): a list of monitors, each consisting of:
|
|
* s: connector
|
|
* s: monitor mode ID
|
|
* a{sv}: monitor properties, including:
|
|
- "enable_underscanning" (b): enable monitor underscanning;
|
|
may only be set when underscanning
|
|
is supported (see GetCurrentState).
|
|
|
|
@properties may effect the global monitor configuration state. Possible
|
|
properties are:
|
|
|
|
* "layout-mode" (u): layout mode the passed configuration is in; may
|
|
only be set when changing the layout mode is
|
|
supported (see GetCurrentState).
|
|
-->
|
|
<method name="ApplyMonitorsConfig">
|
|
<arg name="serial" direction="in" type="u" />
|
|
<arg name="method" direction="in" type="u" />
|
|
<arg name="logical_monitors" direction="in" type="a(iiduba(ssa{sv}))" />
|
|
<arg name="properties" direction="in" type="a{sv}" />
|
|
</method>
|
|
|
|
<!--
|
|
SetOutputCTM:
|
|
@serial: configuration serial
|
|
@output: API id of the output
|
|
@ctm: 3x3 matrix in fixed-point sign-magnitude S31.32
|
|
|
|
Changes the color transform matrix of @output
|
|
-->
|
|
<method name="SetOutputCTM">
|
|
<arg name="serial" direction="in" type="u" />
|
|
<arg name="output" direction="in" type="u" />
|
|
<arg name="ctm" direction="in" type="(ttttttttt)" />
|
|
</method>
|
|
</interface>
|
|
</node>
|