I need to lower the contrast of my screen, I can do it in x, but in wayland it does not work.

[liltingle]

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in x I can do it with this command,
- Warning - Unable to get display calibration
and even though it gives me this, it works for me

 

[Trenix25]

Your monitor should have some kind of physical interface, like buttons, to allow you to do this.

Signed,

Matthew Campbell

 

[ron.alan]

I need to lower the contrast of my screen, I can do it in x, but in wayland it does not work.

Why doesn't this surprise me?

 

[f33dm3bits]

in x I can do it with this command,
- Warning - Unable to get display calibration
and even though it gives me this, it works for me

With which command? I'm guessing it is probably a X11 specific command. What happens when you try it with?

GitHub - zb3/gnome-gamma-tool: A command-line tool that lets you change gamma in GNOME and Cinnamon (with Wayland). You can also adjust contrast and brightness. It works by creating a color profile with the VCGT table, so that changes are persistent

A command-line tool that lets you change gamma in GNOME and Cinnamon (with Wayland). You can also adjust contrast and brightness. It works by creating a color profile with the VCGT table, so that c...

github.com

And otherwise you can try these Gnome extensions.

Soft Brightness Plus - GNOME Shell Extensions

extensions.gnome.org

Monitor DDC Brightness/Contrast + Extra Dimming - GNOME Shell Extensions

extensions.gnome.org

The latter might not work for Gnome 46 but you try manually downloading it from Github and placing it in your user extensions directory($HOME/.local/share/gnome-shell/extensions) to see if it works.