How to change the brightness of screen on ubuntu 16.04 -


i've move system (ubuntu 16.04) computer intel cpu computer amd cpu. i've found there no single file or directory under /sys/class/backlight/, echo 30 > /sys/class/backlight/intel_backlight/brightness not working(but command worked in computer intel cpu). when try create folder under /sys/class/backlight/ root permission, got error operation not permitted. i've tried xbacklight, not work well. how can change brightness of screen in such situation. thanks.

type command ls /sys/class/backlight/. list driver(s) controlling backlight.

you might have resort writing .conf file similar this.


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