When I press the backlight keys, I can see the OSD indicator changing, however the backlight brightness does not change. It always stays at the lowest value. Output of ls /sys/class/backlight: acpi_video0 intel_backlight
When I press the backlight keys, I can see the OSD indicator changing, however the backlight brightness does not change. It always stays at the lowest value. backlight:
Output of ls /sys/class/
acpi_video0 intel_backlight