Full screen on cosmic-files makes the screen green

[alexandru0-dev]

Some context

Putting full screen cosmic-files triggers this green "layer" (idk the terminology sorry). It doesn't work 100% of the times but I can reproduce it almost all the times

It's the same "layer" used for hyprsunset, it's persisted thru tty as the hyprsunset and they can both override each other in some circumstances (substituting it, not one multiplying over the other)
Also is not capturable thru screencopy (OBS)

I'm trying to understand if it's a compositor issue or a driver issue but cannot reproduce it in sway and the logs shows some warning

How to reproduce:

• nix run github:nixos/nixpkgs/53253907100a809583c0344bba5743abc45a64b7#cosmic-files
• put cosmic-files in full-screen with fullscreen
• green (if not, toggle full-screen on/off a couple of times on cosmic-files)

Video

(pardon for the poor quality video) EDIT: uploaded better recorded video

output.mp4

hyprctl systeminfo output

Hyprland 0.51.0 built from branch  at commit e0c96276df75accc853a30186ae5de580b2c725f  ().
Date: 2025-10-01
Tag: v0.51.0, commits:
built against:
 aquamarine 0.9.4
 hyprlang 0.6.3
 hyprutils 0.8.4
 hyprcursor 0.1.13
 hyprgraphics 0.1.6


no flags were set


System Information:
System name: Linux
Node name: polar-bear
Release: 6.15.10-asahi
Version: #1-NixOS SMP PREEMPT_DYNAMIC Tue Jan  1 00:00:00 UTC 1980


GPU information:
apple,agx-t6001apple,agx-g13x

os-release: ANSI_COLOR="0;38;2;126;186;228"
BUG_REPORT_URL="https://github.com/NixOS/nixpkgs/issues"
BUILD_ID="25.11.20250921.554be64"
CPE_NAME="cpe:/o:nixos:nixos:25.11"
DEFAULT_HOSTNAME=nixos
DOCUMENTATION_URL="https://nixos.org/learn.html"
HOME_URL="https://nixos.org/"
ID=nixos
ID_LIKE=""
IMAGE_ID=""
IMAGE_VERSION=""
LOGO="nix-snowflake"
NAME=NixOS
PRETTY_NAME="NixOS 25.11 (Xantusia)"
SUPPORT_URL="https://nixos.org/community.html"
VARIANT=""
VARIANT_ID=""
VENDOR_NAME=NixOS
VENDOR_URL="https://nixos.org/"
VERSION="25.11 (Xantusia)"
VERSION_CODENAME=xantusia
VERSION_ID="25.11"


plugins:
  hy3 by outfoxxed ver 0.1

Explicit sync: supported
GL ver: 3.2
Backend: drm

Monitor info:
	Panel eDP-1: 3456x2160, eDP-1    -> backend drm
		explicit ✔️
		edid:
			hdr ❌
			chroma ❌
			bt2020 ❌
		vrr capable ❌
		non-desktop ❌

hyprctl rollinglog output recorded during the recorded video

hypr-rollinglog.txt

[vaxerski]

@UjinT34 wonky CM? In general the toolkit behind cosmic is abhorrent with its wayland handling so I wouldnt be surprised if it wasnt fucking up in this case too

[UjinT34]

Probably the same as zed and other similar FS issues. #11900 render:non_shader_cm = 0 should fix it. If it helps then it's not related to cosmic stuff, it's some incompatibility with external CM tools like hyprsunset. Or it might be caused by frequent CTM updates during rapid FS toggling.

[vaxerski]

@alexandru0-dev can you check -git with the option above?

[alexandru0-dev]

@vaxerski it works correctly now
@UjinT34 thanks for the patch

my only question for @UjinT34 is if it's a "workaround" for driver issues or it's actually a "hyprland fix" or smth else. (sorry I don't know much about CM etc)
I'm on asahi and I would like to know if there is a bug in the driver that needs to be tackled

[mantzu132]

I'm experiencing a related issue that might help narrow this down. When using hyprsunset, if I fullscreen the Kitty terminal, the orange tint is removed and the screen reverts to its normal color. Exiting fullscreen brings the hyprsunset tint back.
I don't need to toggle full-screen a lot of times like OP for it to happen, happens all the time when i full-screen. Can replicate all the time.
Interestingly doesn't happen at all in my special workspace.
Also persists through tty.

On hyprland 0.51.1-2

[N-sser]

Yeah, this happens to me too. This happens not only with kitty, i have the same issue with Chromium based browsers like Brave and Chromium. Firefox and his forks are not affected. What triggers this is the fullscreenstate of the hyprland window, not the client itself.