Brightness and gamma applet

by cardsurf
UUID: brightness-and-gamma-applet@cardsurf
Score: 4
Last edited: 1 month ago
Last commit: c0fd2a02d4823f8f97d8149570f094306f2dd86c

Sets brightness and gamma levels of a screen

Brightness and gamma applet

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


  • Set brightness of the screen
  • Set gamma of the screen
  • Customizable:
    • Customize an icon shown in a panel
    • Show: all values, brightness or gamma
    • Set: minimum and maximum value thresholds


  1. Extract .zip archive to ~/.local/share/cinnamon/applets
  2. Enable the applet in Cinnammon settings


To specify a screen and outputs:

  1. Right click on the applet
  2. From "Screen" submenu click on a screen
  3. From "Outputs" submenu click on an output

Source code

Browse the source of the applet in the original repository.

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peter urquidez
peter urquidez-1 month ago
i changed the settings and now don't know how to reset them to default.
Ryan Parmeter
Ryan Parmeter-3 months 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
Erick Setha-4 months 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
Nokia808-5 months ago
Thank you very much for this very nice applet !! But why lower limit is just at 30 ?? Can you please make it 20 ?

J Kesler
J Kesler-6 months 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.