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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).
48 lines
1.7 KiB
Markdown
48 lines
1.7 KiB
Markdown
wlroots reads these environment variables
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# wlroots specific
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* *WLR_BACKENDS*: comma-separated list of backends to use (available backends:
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libinput, drm, wayland, x11, headless, noop)
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* *WLR_NO_HARDWARE_CURSORS*: set to 1 to use software cursors instead of
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hardware cursors
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* *WLR_SESSION*: specifies the wlr\_session to be used (available sessions:
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logind/systemd, direct)
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* *WLR_DIRECT_TTY*: specifies the tty to be used (instead of using /dev/tty)
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* *WLR_XWAYLAND*: specifies the path to an Xwayland binary to be used (instead
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of following shell search semantics for "Xwayland")
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## DRM backend
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* *WLR_DRM_DEVICES*: specifies the DRM devices (as a colon separated list)
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instead of auto probing them. The first existing device in this list is
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considered the primary DRM device.
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* *WLR_DRM_NO_ATOMIC*: set to 1 to use legacy DRM interface instead of atomic
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mode setting
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* *WLR_DRM_NO_MODIFIERS*: set to 1 to always allocate planes without modifiers,
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this can fix certain modeset failures because of bandwidth restrictions.
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## Headless backend
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* *WLR_HEADLESS_OUTPUTS*: when using the headless backend specifies the number
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of outputs
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## libinput backend
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* *WLR_LIBINPUT_NO_DEVICES*: set to 1 to not fail without any input devices
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## Wayland backend
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* *WLR_WL_OUTPUTS*: when using the wayland backend specifies the number of outputs
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## X11 backend
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* *WLR_X11_OUTPUTS*: when using the X11 backend specifies the number of outputs
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# Generic
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* *DISPLAY*: if set probe X11 backend in *wlr_backend_autocreate*
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* *WAYLAND_DISPLAY*, *_WAYLAND_DISPLAY*, *WAYLAND_SOCKET*: if set probe Wayland
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backend in *wlr_backend_autocreate*
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* *XCURSOR_PATH*: directory where xcursors are located
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* *XDG_SESSION_ID*: if set, session ID used by the logind session
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