Skip to content

Gamma

Jump to bottom
Federico Di Pierro edited this page Jun 7, 2023 · 7 revisions

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

  • /org/clightd/clightd/Gamma/Xorg
  • /org/clightd/clightd/Gamma/Wl
  • /org/clightd/clightd/Gamma/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")

On Wayland, Gamma smooth transitions are not supported.
Support on wayland requires the compositor to implement wlr-gamma-control-unstable-v1 protocol.

Drm

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