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Federico Di Pierro edited this page Jun 7, 2023 · 8 revisions

Since Clightd 5.0, Dpms API exposes 3 different plugins (priority-listed below):

  • /org/clightd/clightd/Dpms/Xorg
  • /org/clightd/clightd/Dpms/Wl
  • /org/clightd/clightd/Dpms/Drm

When calling any of those, their plugin will be used; when calling main object path first available plugin will be used instead given the above priority-listed list.

Note that Changed signal will be sent on both main object path and used plugin's path.

The API is the same for any of those plugins; but first 2 input parameters ("ss") meaning changes:

Xorg

  • $DISPLAY (defaults to ":0")
  • $XAUTHORITY (defaults to caller "$HOME/.Xauthority")

Wl

  • $WAYLAND_DISPLAY (defaults to "wayland-0")
  • $XDG_RUNTIME_DIR (defaults to caller "/run/user/$uid")

Support on wayland requires the compositor to implement wlr-output-power-management-unstable-v1 protocol.

KWin_wl

  • $WAYLAND_DISPLAY (defaults to "wayland-0")
  • $XDG_RUNTIME_DIR (defaults to caller "/run/user/$uid")

Support on wayland requires the compositor to implement org_kde_kwin_dpms protocol.

Drm

  • card (if empty, defaults to first drm device it finds through udev)
  • unused

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