render_unfocused doesn't allow windows to update when in a hidden workspace (unless the currently displayed workspace is updating)

[Neryss]

Hello,

Since 0.52.1-b, the render_unfocused setting doesn't work as it did before, what was expected:
If the window has the render_unfocused rule active, it should update when placed in a hidden workspace at render_unfocused_fps fps.
It worked before as I posted this question on the forum, which solved my issue.

What happens now:
When I'm placing my shader window in a hidden workspace on my second monitor and recording said window with OBS, it only displays at a reduced framerate through OBS. What I've observed is that the hidden window updates at the rate of my current window displayed on the monitor. For example, the hidden window updates at 60FPS if a game is running or a video is playing on the same monitor or if I move my mouse around. Otherwise it freezes or updates only if an event occurs on the monitor, for example, if there's a terminal opened, the hidden window will update each time the cursor blinks on the terminal.

I've tried the fix mentionned on #12408, however it only fixes the mentioned issue and not this one.

Note: if the update happens on another monitor, ie my main one, it won't update the hidden window.

[vaxerski]

can you bisect?

[Neryss]

I'm out of town, I'll bisect this evening when I'm back.
Altough when I last tested, the issue seemed fixed for XWayland windows but not for native Wayland ones.

I'll update asap

[Neryss]

So here's an update:

I found out that the issue was present way before 0.52.1.b, I've tried on commit da04afa for example (which was old enough to fit where I didn't notice the issue) and it happens there as well.

The thing is I usually put the program on a hidden workspace on my right monitor, then place OBS on my visible workspace on my right monitor too. OBS updates the display and so the shader on the hidden workspace runs at 60fps (since they're both on the same monitor).

So the issue seems to be older than what I originally posted.

Here's a video of what happens when the program runs on xwayland, the only difference between when it's choppy and not is that my OBS window is on the main monitor or the right one:

test-compr.mp4

If I try to do the same with the window running on wayland mode, it just doesn't move when I either put my OBS on the main or right monitor.

---

Here's the hyprctl clients output for my program:

Window 5636286c6a50 -> balatro_shader:
	mapped: 1
	hidden: 0
	at: 1927,47
	size: 1906,1026
	workspace: 4 (4)
	floating: 0
	pseudo: 0
	monitor: 2
	class: balatro_shader
	title: balatro_shader
	initialClass: balatro_shader
	initialTitle: Godot
	pid: 81800
	xwayland: 1
	pinned: 0
	fullscreen: 0
	fullscreenClient: 0
	grouped: 0
	tags: 
	swallowing: 0
	focusHistoryID: 2
	inhibitingIdle: 0
	xdgTag: 
	xdgDescription: 
	contentType: none

And my window rule for render_unfocused:

windowrule {
    name = render-hidden
    match:class = balatro_shader

    render_unfocused = on
  }

---

Note that the issue is also present when trying to run shaders using hyprshade, while setting damage_tracking=0 and using a shader with Time, the shaders gets choppy or immobile when the monitor display isn't updated.