(Error: Permission denied, when issued as root). Now my query is how i can incorporate above working command to some kind of keyboard shortcut? I have tried the script explained in which is not working for me. The maximum value is 976 and minimum i have tried is 30. The only thing that works is issuing command as root "tee /sys/class/backlight/intel_backlight/brightness <<< value". In power management "dim display when idle" is unticked. I am very tired of this issue since I tried so many solutions before asking.
I have seen multiple people using Lenovo laptops without this kind of problem. I tried them one by one and restarted everytime. I have tried multiple GNU/Linux distributions in live USB mode to test if the brightness controller works and I found none. c) Click on View all option on the left side of the Windows. The issue here is that the backlight (brightness) does not change with nvidia nor intel card. (Forgive me if i tried unnecessary methods too, i have no understanding of Linux except reading forums!). They feature simple controls and are lightweight and compact, so theyll accompany you whenever youre on the go. Method 1: Please follow the steps to run hardware troubleshooter on the computer and check if that helps you: a) Press Windows and X key together and select Control Panel. Re: Cant control brightness on Lenovo Legion Y740 It is not the same issue. I have tried Mate Brightness Applet, Xbacklight, creating nf, adding "e_native_backlight=1" to /etc/default/grub, even editing "/etc/rc.local" and other methods i could find, nothing seems to work.
#LENOVO BRIGHTNESS CONTROL INSTALL#
I have Lenovo Z570 install with PCLinuxOs 2016.04 (Mate) with intel graphics where Fn keys are unable to control display brightness.
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