dpms off causes the monitor to be unplugged after some minutes

[myNicole98]

System Info

OS: NixOS
Hyprland version: Hyprland 0.50.1 built from branch v0.50.1-b at commit 4e242d0 ([gha] Nix: update inputs).
GPU: Nvidia RTX 4070 Ti Super

Problem Description

My setup is made of 2 monitors:

1. Main monitor connected via displayport (DP-1)
2. Headless display that I stream over VNC

I currently use hypridle to turn on and off the screen after some minutes of inactivity, with hyprctl dispatch dpms off/on

When the screen turns off, and then I turn it back on shortly after, everything is perfectly fine.
However, if the screen turns off and about 5 minutes passes, the monitor gets disconnected and I encounter 3 major problems:

1. It causes both hyprpanel and waybar to either crash or not reappear on-screen after wakeup, forcing me to restart them manually
2. It messes with the monitors order, which causes hyprpanel to render the bar on both screen when I specified to only render it on the primary screen
3. floating windows get thrown in the upper left corner
   e.g.Msty on a special workspace in normal conditions:

Msty after waking up the screen:

They are annoying problems that every time force me to restart the bars or recreate the headless display, restart wayvnc etc...

I've tried to use both the open and closed Nvidia driver, and I've tried messing up with all sorts of power management toggles shown in the wiki with no success so far.

I'll also add that I've had this problem since day 1 I've got my hands on an nvidia card, I've never managed to find a solution since then

[vaxerski]

that's something some panels just do and we can't do much about it.