The brightness slider does not change the brightness on my laptop (Acer Aspire 4810T, Intel integrated graphics). Looking around, the closest thread that I found was this. Adding "acpi_backlight=vendor acpi_osi=linux"
to /etc/default/grub
(as suggested here) did not work, and neither did creating /etc/X11/xorg.conf.d/10-brightness.conf
. Using the xrandr
command does work:
xrandr --output LVDS-1 --brightness 1.0
Though this understandably only works when I am using X, not Wayland.
What could possibly be done to fix this?