feature request: toggle multihead monitors on/off

[FedericoCeratto]

Hi and thanks for developing sway.
It would be really nice to be able to toggle multihead monitors between 4 configurations using keys:

• only monitor 1 (monitor 2 goes off)
• only monitor 2
• both on, mirrored
• both on, side by side

Thanks

[emersion]

Duplicate of #1666

[FedericoCeratto]

@emersion this issue is about toggling monitors at "runtime" rather than changing configuration and restarting sway.

[emersion]

You can already do that, e.g.:

swaymsg output XXX disable

[japhir]

Currently I type that in terminal manually, but it would be quite nice to have something like bindsym XF86Display exec output * toggle, which would do what @FedericoCeratto suggests, toggling which outputs are on/off/mirrored.

[Emantor]

toggle was also implemented in a recent PR, although I doubt you'll want to use it for all outputs. I use it for my Laptops internal screen, however for all other use cases an external program is more suited.
A program implementing wlr-output-management-v1, see #4169 would be best.

[layus]

As it not mentioned here, you should be aware that this idea relates to kanshi. Kanshi applies configurations based on the current set of plugged-in displays. But you can abuse it to load a differrent config file each time you press on a given key. That requires a bit of scripting but would end up being very easy to use and maintain.

[emersion]

But you can abuse it to load a differrent config file each time you press on a given key.

A planned feature to avoid the need for this workaround: emersion/kanshi#10