Brightness and gamma applet

by cardsurf

Score 21

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UUID: brightness-and-gamma-applet@cardsurf

Last edited:

3 weeks ago 2025-04-11, 05:18

Last commit: [768bc504] Update Hungarian translations (#7060)

Sets brightness and gamma levels of a screen

README

Brightness and gamma applet

An applet that sets brightness and gamma levels of a screen for Linux Mint Cinnamon

Features

Set brightness of the screen
Set gamma of the screen
From Cinnamon 6.4: tooltip displaying current values
Customizable:
- Customize an icon shown in a panel
- Show: all values, brightness or gamma
- Set: minimum and maximum value thresholds
- From Cinnamon 6.4: disable Night Light Mode
- From Cinnamon 6.4: set hotkeys to Increase/Decrease brightness

Installation

Download the applet from Cinnamon Settings or extract .zip archive to ~/.local/share/cinnamon/applets
Enable the applet in Cinnamon Settings

Usage

To specify a screen and outputs:

Right click on the applet
From "Screen" submenu click on a screen
From "Outputs" submenu click on an output

Source code

Browse the source of the applet in the original repository.

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24 Comments

claudiux-1 month ago

Hi, On Cinnamon 6.4, you can define or modify **presets** (in this applet settings), which can then be accessed via the context menu. Enjoy!

claudiux-1 month ago

Works well now on Cinnamon 6.4: 1) Added the ability to deactivate the Night Light mode. (See option in settings.) 2) Added keyboard shortcuts to change the brightness. (Set them in settings.) 3) Added tooltip displaying current values. Enjoy!

Jerm-1 year ago

Works fantastic for me on laptop but doesn't work at all on desktop (expected), running Ubuntu 22.04, Cinnamon 5.2.7. Two problems: 1) scrolling over battery power icon will dim the screen 2) The customize icon function was extremely particular about the file it will apply. I still can't quite figure out the settings. I tried different ico and png settings in gimp; transparent background, opaque background, compression levels, I edited in pbrush in Windows 10 VM and saved as png, got nothing. I ended up uploading it to one of those shady looking file converter websites and their file worked even though it was a larger filesize. No clue what's different.

Vlad Rusu-2 years ago

Linux Mint 21 bug: hovering over applet and using mouse-wheel to increase/decrease brightness is broken (doesn't properly does it, in small steps).

tomexsans-2 years ago

Was using the Gammastep to adjust my screen brightness, since redshift is not responding to my commands, telling me i was using wayland so i stumbled upon this and it works perfectly on my device. Plus the UI is on point straight. thanks for this.

Christian-Delair-2 years ago

Hello, a small issue with version 1.1.2 under Linux-Mint 21 When putting the mouse cursor on the applet : 1) Pushing the mouse wheel backward to decrease the brightness is well working. 2) But, after that, re-pushing the mouse wheel forward to re-increase the brightness is not working. Thanks ;-)

hemanti0503-3 years ago

Great applet! Exactly what I was looking for to change the brightness of my three monitors all at once. :) Thank you for making it!

doug-last-3 years ago

Theres a confussion: Gamma is not RGB. This app offers the brightness and RGB levels, not gamma adjustments. (i might be wrong about tecnicities, but looking to adjust my gamma settings this app don't do as expected.)

Matilaz-3 years ago

Thank you very much. İ use sony vaio VPCF1M1E, best regards

huynk-dev-3 years ago

Perfect for me, thanks!

woodmix-3 years ago

good work

Vladimir-4 years ago

Realy simple and effective tool, works with two monitors

Dragoş-4 years ago

Tried to improve this applet. Still a work in progress. Hopefully the author/maintainer would fancy the ideas. There is a newer version but waiting for feedback on a SVG issue: https://github.com/linuxmint/cinnamon/issues/9912#issuecomment-774509791 Here is my humble contribution: https://forums.linuxmint.com/viewtopic.php?f=120&t=341630

amiben-4 years ago

This applet is wonderful. Please consider adding the ability to adjust the temperature and humidity outside. ;/

ben2talk-5 years ago

I'm curious why this applet works the way it does... I also installed QRedshift - which enables me to switch the setting (i.e. dim the screen) with a keyboard shortcut, also right click to restore the 'default' (transparent) daytime setting. So what does this applet offer?

Phil995511-5 years ago

Excellent applet, works perfectly, thank you for this software.

Marko-5 years ago

Excellent. Why not add gamma setting? This should be integrated into the Linux Mint because it is 21st century.

wizzwizz2-6 years ago

This works perfectly, and is simple to use. Thank you!

Jocix-6 years ago

Excellent applet. Tnx! :)

peter urquidez-7 years ago

i changed the settings and now don't know how to reset them to default.

Ryan Parmeter-7 years ago

Is it intended that this only operates on one monitor at a time? I have to switch back and fourth between outputs to adjust each screen. My feature request would be to add a "lock" option where all outputs are synced. Thanks for the applet cardsurf!

Erick Setha-7 years ago

Thank you very much. However, upon using it for a 24 hour long, the LCD monitor screen would slowly be brighten back to 100 percent. I would need to keep changing it back to 60 percent every hour or so. If I play Starcraft 2 on PlayonLinux, the brightness would bounce back from 60 percent to 100 percent right away. LM18.2 Cinnamon with Linux 4.8.0-53-generic. GeForce GTX 750 Ti/PCIe/SSE2 NVIDIA 375.66

Nokia808-7 years ago

Thank you very much for this very nice applet !! But why lower limit is just at 30 ?? Can you please make it 20 ? Best

J Kesler-7 years ago

Exactly what I wanted. Thanks cardsurf for a perfectly simple applet. For months I have been using xrandr from the command line to adjust my external monitor's brightness. This is so much nicer.