Proper way to fix screen brightness
Posted: 17. Nov 2014, 17:13
I have a lenovo g50-45 amd a8 processor. I just cannot decrease or increase the screen brightness. My eyes start to hurt.
I have seen a lot of solutions like specifying acpi_backlight=vendor acpi_osi=!Windows etc, but none of which seem to work in my case when I append them to the lilo.conf.
I have checked the files in /sys/class/backlight/ideapad , the actual and brightness is 2 and max is 21. decreasing the values, no effect.
When i typed I got the output as No outputs have backlight property, and I have no idea how to fix it.
I have seen a lot of solutions like specifying acpi_backlight=vendor acpi_osi=!Windows etc, but none of which seem to work in my case when I append them to the lilo.conf.
I have checked the files in /sys/class/backlight/ideapad , the actual and brightness is 2 and max is 21. decreasing the values, no effect.
When i typed
Code: Select all
xbacklight -20