When using Xwayland-on-demand (default), if the (experimental) autoclose
features is enabled, we can rely on Xwayland's auto-terminate feature
instead of explicitly killing the Xwayland process.
With it, gone is the mechanism that was added to check the X11 clients
connected and their executable to check whether we can (safely) kill
Xwayland.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1794>
The connection to the Xserver for the X11 window manager part of mutter
even on Wayland may prevent the Xserver from shutting down.
Currently, what mutter does is to check the X11 clients still connected
to Xwayland using the XRes extension, with a list of X11 clients that
can be safely ignored (typically the GNOME XSettings daemon, the IBus
daemon, pulseaudio and even mutter window manager itself).
When there is just those known clients remaining, mutter would kill
Xwayland automatically.
But that's racy, because between the time mutter checks with Xwayland
the remaining clients and the time it actually kills the process, a new
X11 client might have come along and won't be able to connect to
Xwayland that mutter is just about to kill.
Because of that, the feature “autoclose-xwayland” is marked as an
experimental feature in mutter and not enabled by default.
Thankfully, the Xserver has all it takes to manage that already, and
is even capable of terminating itself once all X11 clients are gone (the
-terminate option on the command line).
With XFixes version 6, the X11 clients can declare themselves
"terminatable", so that the Xserver could simply ignore those X11
clients when checking the remaining clients and terminate itself
automatically.
Use that mechanism to declare mutter's own connection to the Xserver as
"terminatable" when Xwayland is started on demand so that it won't hold
Xwayland alive for the sole purpose of mutter itself.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1794>
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>
The test aims to verify that setting the following policy
<policy>
<stores>
<store>system</store>
</stores>
</policy>
only applies monitor configurations from the system level.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2030>
This adds a way to define a way, at the system level, to define a policy
of how monitor configuration files are loaded.
The intended use case is to e.g. either prefer system level monitor
configurations before user levels, or only allow system level
configurations.
Examples:
Prefer system over user level configurations:
<monitors version="2">
<policy>
<stores>
<store>system</store>
<store>user</store>
</stores>
</policy>
<configuration>
...
</configuration>
</monitors>
Only allow system level configurations:
<monitors version="2">
<policy>
<stores>
<store>system</store>
</stores>
</policy>
<configuration>
...
</configuration>
</monitors>
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2030>
strncmp() always return 0 if the passed length is 0. What this means is
that whatever the first string check happens to be, if the parsed XML
cdata was empty (e.g. if we got <element></element>), the first
condition would evaluate to true, which is rather unexpected.
Fix this by making sure the string length is correct first. Also move it
into a helper so we don't need to repeat the same strlen() check every
time.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2030>
The way device backends implement power saving differ, and power saving
needs to contain nothing incompatible in the same update. Make it
impossible to e.g. mode set, page flip, etc while entering power save by
not using MetaKmsUpdate's at all for this.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2159>
When we're predicting state, i.e. when having posted an update while
avoiding reading KMS state, copy the predicted state, update the actual
state, and check that the predicted state matches the newly updated one.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2159>
It was a bit scattered, with it being split between MetaKms and
MetaKmsImpl, dealing with MetaKmsDevice and MetaKmsImplDevice
differentation. Replace this by, for now, single entry point on
MetaKmsDevice: meta_kms_device_process_update_sync() that does the right
thing.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2159>
As other KMS tests, depends on being DRM master and vkms being loaded.
Currently consists of a sanity check that checks for the expected set of
connectors, CRTCs, planes, etc.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2159>
Right now gamma is set only via the D-Bus API (from gsd-color), but the
actual gamma isn't right after SetCrtcGamma(), meaning if one would call
GetCrtcGamma() right after setting it, one would get the old result.
Avoid this by getting the "current" CRTC gamma from the cache we manage.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2159>
In order to support dynamic imports, gjs added an implicit mainloop
that can drive the main context independently from other mainloops
like the one from GApplication or MetaContext.
That means that sources can now get dispatched to the main context
from the moment the plugin is started, resulting in a crash as the
association between compositor and plugin manager doesn't exist until
meta_plugin_manager_new() returns.
Make sure this doesn't happen by only starting the plugin after
meta_plugin_manager_new() has returned.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2242>
When privacy screen is changed and this happens on explicit user request
(that is not a setting change) we should notify about this via an OSD.
To perform this, we keep track of the reason that lead to a privacy
screen change, and when we record it we try to notify the user about.
When the hardware has not an explicit hotkey signal but we record a
change we must still fallback to this case.
Fixes: #2105
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1952>
Privacy screen events on connector are handled as notification events
that won't cause any monitors reconfiguration but will emit monitors
changed on DBus, so that the new value can be fetched.
We monitor the hardware state so that we can also handle the case of
devices with hw-switchers only.
In case a software state is available it means we can also support
changing the state, and if so expose the state as unlocked.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1952>
When both a setting change and a monitor change happens we need to
ensure that the monitor settings are applied.
This is currently only related to privacy settings, but will in future
also handle other monitor parameters such as brightness.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1952>
Some monitors support hardware features to enable the privacy screen
mode that allows users to toggle (via software or hardware button) a
state in which the display may be harder to see to people not sitting
in front of it.
Expose then this capability to the monitor level so that we can get its
state and set it.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1952>
In some cases mutter is started in the user scope from a TTY (for
example using toolbox). Using sd_pid_get_session fails because it's not
in the session scope so it falls back to the primary session
(sd_uid_get_display). We want to start mutter on the TTY we started
mutter on however. Instead of relying on the scope to figure out the
correct session we first look at $XDG_SESSION_ID which is set by
systemd_pam.so.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2254>
It is possible that we never create a cached state for a surface
even if it is synced. That is the case if `commit()` is never called.
We still need to call `apply_state()` in this case in order to run
e.g. `role_post_apply_state()` or `parent_state_applied` on subsurfaces.
So just ensure to initialize the cached state instead of bailing out.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2232>
Subsurfaces can be effectively synced indirectly via their ancestors.
Right now such indirectly synced surfaces don't apply their cached
state when their ancestor effectively becomes desync as by the time
we call `parent_state_applied()` on them, they are considered as
desync.
Thus sligthly reoder things so when the ancestors becomes desync
and applies its state, those surfaces still count as synced and
will thus apply their cached state as well.
While on it, add a check to prevent `set_desync()` to have side
effects when the target surface is not currently synced.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2232>
At first glance the `goto` looks like a loop, or potentially an infinite
loop. It's not a loop because the mode has changed at that point to
`META_SHARED_FRAMEBUFFER_COPY_MODE_PRIMARY`. But we can make it more
obvious and avoid the need for a goto.
Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2240>
