so i just reinstalled endeavourOS to change my WM into i3-wm
and i can’t change the brightness, i have faced this issue before in endeavourOS KDE but i remember i only have add acpi_backlight=video
so i tried to fix it
first, i installed brightnessctl and tried to use it’s command like brightnessctl s 3
It outputs :
Updated device ‘nvidia_wmi_ec_backlight’:
Device ‘nvidia_wmi_ec_backlight’ of class ‘backlight’:
Current brightness: 3 (1%)
Max brightness: 255
But nothing changed, my screen is still in max brightness
then i tried putting every one of these into /etc/default/grub
acpi_backlight=vendor
acpi_backlight=native
acpi_backlight=video
acpi_backlight=nvidia_wmi_ec
then i sudo grub-mkconfig -o /boot/grub/grub.cfg
reboot, tried changing the brightness again and nothing changed
my backlight folder name is nvidia_wmi_ec_backlight
A lot of folks have issues getting this going on i3 for some reason. It seems different things work for different folks; if you read through some of the other solutions in the forum you are bound to find something that works for you.
Here are some relevant threads I found with a quick search:
It’s just a matter of doing some testing to figure out what works in your specific setup.
For me, adding this to the config works:
bindsym XF86MonBrightnessUp exec brightnessctl -c backlight set +5%