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Closes: #3405
Supersedes: !3562
Co-authored-by: Xiao YaoBing <xiaoyaobing@qq.com>
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The values are lowercase, not uppercase.
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This env var allows to override the DRM node used by the GLES2 and
Vulkan renderers. It's especially useful to select a DRM node when
running with the headless backend.
References: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/2656
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The direct session is gone, so this env var isn't looked up
anymore.
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This option was added with commit
8e346922508aa3eaccd6e12f2917f6574f349843.
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This env var forces the creation of a specific renderer. If no renderer
is specified, the function will try to create all of the renderers one
by one until one is created successfuly.
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libseat provides all session functionality, so there is no longer need
for a session backend abstraction. The libseat device ID, seat handle
and event loop handle are moved to the main wlr_session and wlr_device
structs.
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This is instead delegated to libseat.
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This is instead delegated to libseat.
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The creation of `wlr_egl` will fail is the device extension
EGL_MESA_device_software is defined. The creation process is allowed to
continue only if the environment variable `WLR_RENDERER_ALLOW_SOFTWARE`
is defined to the value 1.
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When debugging Xwayland-related issues, a common first step in debugging
has been to ask the reporter to move their real Xwayland to
/usr/bin/Xwayland.bin, and create a shell script starting Xwayland with
extra arguments under the original /usr/bin/Xwayland location.
Introducing a `WLR_XWAYLAND` environment variable makes this less
invasive, by allowing the user to swap out Xwayland without resorting to
global system changes (or source patches).
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In some cases modesets fail if the planes are initialized with
modifiers. Since in this case possibly all planes need to reinitialized,
which is not possible in the current wlroots design, add an environment
variable for affected users.
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rootston isn't part of wlroots anymore.
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Users interested in remote access to wlroots compositors should use
wayvnc:
https://github.com/any1/wayvnc
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Testing with exporting WLR_BACKENDS=drm worked, and it wasn't documented. Checking the backends folder, and it also mentions an RDP backend as well
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This is fixed on amdgpu, so we don't need this anymore.
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The noop backend is similar to headless, but it doesn't contain a
renderer. It can be used as a place to stash views for when there's no
physical outputs connected.
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This allows the legacy interface to be used instead of atomic if needed. This
is a workaround to make some Intel GPUs work (if this variable is unset) as
well as to make some AMD GPUs work (if this variable is set).
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shm_open is a POSIX function creating an in-memory file. Using it simplifies
the code and removes the dependency on XDG_RUNTIME_DIR. The only downside is
that we need to generate a random name for the shm file.
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Valid values are "logind"/"systemd" and "direct". If WLR_SESSION is set,
only its value is potentially tried; it will not try any other option.
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