Reducing the brightness of your PC is a very good thing to do for several reasons, among which are the reduction of power (battery) consumption and the optical effects it can have on the eyes of a regular PC user. By default I set the brightness of all my systems to the lowest value possible (0). If you’re unlike me I know you’d prefer a brightness level between the maximum and minimum value, then this post is for you. So let’s get started.
After you set the brightness to your desired level open up a terminal and check what the brightness is set to that value by typing:
cat /sys/class/backlight/acpi_video0/brightness
Take the value shown from that command and
sudo gedit /etc/rc.local
In the file right above exit 0 add
echo your_value_here > /sys/class/backlight/acpi_video0/brightness
This would permanently set the brightness to your value as rc.local is executed at each reboot.
If you don’t have the /sys/class/backlight/acpi_video0/brightness file, this would not be possible.
Using the GUI:
STEP 1. Go to SETTINGS>>BRIGHTNESS, and you would see a slider to adjust the brightness of your system to your desired value.
STEP 2. Then go to /sys/class/backlight/acpi_video0/ using the nautilus file explorer. Open the brightness file in a text editor, and copy the value of the brightness shown (mine is 0 because that’s what I set it to in the brightness setting earlier).
STEP 3. Go to /etc directory using the nautilus file explorer. Locate and open in a text editor the rc.local file.
STEP 4. In the file right above exit 0 add;
echo your_value_here > /sys/class/backlight/acpi_video0/brightness
and then save the file and reboot.
Happy Linux’NG!
- Time complexity analysis: How to calculate running time - April 1, 2024
- Sovereign Tech Fund Invests €1M In GNOME’s Open-Source Project - November 19, 2023
- Google’s Bard AI: ChatGPT Rival or The Next Frontier in AI and NLP Technology - February 8, 2023
