How do I convert my laptop display in Grayscale mode

Ask Fedora
,
1

I tried downloading a grayscale .icc profile and add it in the ‘Color’ program under Cinnamon, but it didn’t help. I tried different combinations of gamma values in xrandr, xcalib, xgamma, but nothing seemed to help. Maybe the values I’m trying with these commands are not correct.If someone who knows about changing the color space of the display can help me with this, that would be really great.

$ inxi -SG
System:
  Host: fedora Kernel: 6.11.4-201.fc40.x86_64 arch: x86_64 bits: 64
  Desktop: Cinnamon v: 6.2.9 Distro: Fedora Linux 40 (Cinnamon)
Graphics:
  Device-1: Advanced Micro Devices [AMD/ATI] Navi 14 [Radeon RX 5500/5500M /
    Pro 5500M] driver: amdgpu v: kernel
  Device-2: Advanced Micro Devices [AMD/ATI] Cezanne [Radeon Vega Series /
    Radeon Mobile Series] driver: amdgpu v: kernel
  Device-3: Luxvisions Innotech HP Wide Vision HD Camera driver: uvcvideo
    type: USB
  Display: x11 server: X.Org v: 1.20.14 with: Xwayland v: 24.1.3 driver: X:
    loaded: amdgpu unloaded: fbdev,modesetting,radeon,vesa dri: radeonsi
    gpu: amdgpu resolution: 1920x1080~60Hz
  API: OpenGL v: 4.6 vendor: amd mesa v: 24.1.7 renderer: AMD Radeon
    Graphics (radeonsi renoir LLVM 18.1.6 DRM 3.59 6.11.4-201.fc40.x86_64)
  API: EGL Message: EGL data requires eglinfo. Check --recommends.
2

Using GNOME Tweaks:

  • Install GNOME Tweaks if you haven’t already: sudo dnf install gnome-tweaks
  • Open GNOME Tweaks.
  • Go to Appearance > Colors.
  • Under the Color Filters section, select Grayscale.
3

Will this work with Cinnamon DE ?

4

For Cinnamon you need to install the Desaturate All applet. For details see https://askubuntu.com/q/1546984