# Hyprsunset blue light filter gets disabled when window is in fullscreen mode

**URL:** <http://forum.hypr.land/t/hyprsunset-blue-light-filter-gets-disabled-when-window-is-in-fullscreen-mode/969>\
**Category:** Bugs / FRs / Support\
**Tags:** hyprsunset, bug, renderer\
**Created:** [October 8, 2025, 11:22am UTC](http://forum.hypr.land/t/hyprsunset-blue-light-filter-gets-disabled-when-window-is-in-fullscreen-mode/969 "2025-10-08T11:22:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![frostbite](http://forum.hypr.land/letter_avatar_proxy/v4/letter/f/c89c15/32.png) [@frostbite](http://forum.hypr.land/u/frostbite)\
**Post date:** [October 8, 2025, 11:22am UTC](http://forum.hypr.land/t/hyprsunset-blue-light-filter-gets-disabled-when-window-is-in-fullscreen-mode/969/1 "2025-10-08T11:22:20Z")

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> **Hyprland version**
>
> ```auto
> Hyprland 0.51.1 built from branch at commit 71a1216abcc7031776630a6d88f105605c4dc1c9 ([gha] Nix: update inputs).
> Date: Mon Sep 22 20:54:03 2025
> Tag: v0.51.1, commits: 6436
> 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
> 
> ```

## Describe your issue / feature…

`hyprsunset –temperature 4000` bluelight filter disables when i full screen a window and re-enables when i go back to tiling mode.

Steps to Reproduce →

1. `hyprsunset –temperature 4000`
2. `hyprctl dispatch fullscreen`
3. bluelight filter disables
4. `hyprctl dispatch fullscreen`
5. bluelight filter enables

---

<div class="post-metadata">

**Author:** ![vaxry](http://forum.hypr.land/user_avatar/forum.hypr.land/vaxry/32/3_2.png) [@vaxry](http://forum.hypr.land/u/vaxry)\
**Post date:** [October 8, 2025, 11:24am UTC](http://forum.hypr.land/t/hyprsunset-blue-light-filter-gets-disabled-when-window-is-in-fullscreen-mode/969/2 "2025-10-08T11:24:35Z")

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That is already fixed in git, it’s due to our CM shaders. (hyprland git to clairfy)