Looks like the original repository has disappeared, so since GPL v3 allows I've created a fork of it. Not sure I want to maintain it but for now it won't hurt to have it here.
wdisplays is a graphical application for configuring displays in Wayland compositors. It borrows some code from kanshi. It should work in any compositor that implements the wlr-output-management-unstable-v1 protocol. Compositors that are known to support the protocol are Sway and Wayfire. The goal of this project is to allow precise adjustment of display settings in kiosks, digital signage, and other elaborate multi-monitor setups.
Check your distro for a
wdisplays package. Known distro packages:
Build requirements are:
meson build ninja -C build sudo ninja -C build install
Displays can be moved around the virtual screen space by clicking and dragging them in the preview on the left panel. By default, they will snap to one another. Hold Shift while dragging to disable snapping. You can click and drag with the middle mouse button to pan. Zoom in and out either with the buttons on the top left, or by holding Ctrl and scrolling the mouse wheel. Fine tune your adjustments in the right panel, then click apply.
There are some options available by clicking the menu button on the top left:
It's intended to be the Wayland equivalent of an xrandr GUI, like ARandR.
Sway, like i3, doesn't save any settings unless you put them in the config
file. See man
sway-output. If you want to have multiple configurations
depending on the monitors connected, you'll need to use an external program
like kanshi. Integration with that and other external daemons is planned.
A minimal amount of code (approximately 150-200 LOC) is currently required to get support for this in wlroots compositors. See the diff here for a sample implementation on top of tinywl: tinywl-output-management.