wlroots/docs/env_vars.md
emersion 346ec21c4c
util: use shm_open for in-memory files
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.
2018-10-28 22:39:54 +01:00

1.4 KiB

wlroots reads these environment variables

wlroots specific

  • WLR_DRM_DEVICES: specifies the DRM devices (as a colon separated list) instead of auto probing them. The first existing device in this list is considered the primary DRM device.
  • WLR_DRM_NO_ATOMIC: set to 1 to use legacy DRM interface instead of atomic mode setting
  • WLR_LIBINPUT_NO_DEVICES: set to 1 to not fail without any input devices
  • WLR_BACKENDS: comma-separated list of backends to use (available backends: wayland, x11, headless)
  • WLR_WL_OUTPUTS: when using the wayland backend specifies the number of outputs
  • WLR_X11_OUTPUTS: when using the X11 backend specifies the number of outputs
  • WLR_HEADLESS_OUTPUTS: when using the headless backend specifies the number of outputs
  • WLR_NO_HARDWARE_CURSORS: set to 1 to use software cursors instead of hardware cursors
  • WLR_SESSION: specifies the wlr_session to be used (available sessions: logind/systemd, direct)

rootston specific

  • XKB_DEFAULT_RULES, XKB_DEFAULT_MODEL, XKB_DEFAULT_LAYOUT, XKB_DEFAULT_VARIANT, XKB_DEFAULT_OPTIONS: xkb setup

generic

  • DISPLAY: if set probe X11 backend in wlr_backend_autocreate
  • WAYLAND_DISPLAY, _WAYLAND_DISPLAY, WAYLAND_SOCKET: if set probe Wayland backend in wlr_backend_autocreate
  • XCURSOR_PATH: directory where xcursors are located