Windows not visible after a monitor power cycle

[noib3]

Describe the bug

Astal windows disapper after a monitor is turned off.

To Reproduce

I'm using a single external monitor. I'm not sure if it can be reproduced on a laptop by closing and opening the lid.

• WM: Hyprland v0.44.1
• Astal config: the default one after executing ags init (link to mine)
• ags bundle
• run the executable
• turn the monitor off
• turn the monitor on
• 💥 the executable continues running, but the bar has disappeared

Expected behavior

The bar is still visible after the monitor is turned back on.

[kotontrion]

When you power off your monitor it will be disconnected. Windows bound to a specific monitor will get destroyed when that monitor gets disconnected. Not destroying that window would violate the layer shell protocol and is done automatically by the gtk-layer-shell library.

You need to connect to the monitor added and removed events to recreate the windows:

        //create windows for already connected monitors
        App.get_monitors().map(Bar)
        //create windows for newly connected monitors
        App.connect("monitor_added", (_, mon) => Bar(mon))
       //remove windows for removed monitors
        App.connect("monitor_removed", (_, mon) => {
            App.get_windows().forEach(w => {
                if(w.gdkmonitor == mon) App.remove_window(w)
            })
        })

[Aylur]

https://aylur.github.io/astal/guide/typescript/faq#auto-create-window-for-each-monitor