Open ghaffarian opened 11 years ago
Does it work with commands like these :+1:
echo 50 | sudo tee /sys/class/backlight/nvidia_backlight/brightness echo 127 | sudo tee /sys/class/backlight/nvidia_backlight/brightness
Yes, I tested those commands and they affected the screen brightness. So how to fix it to work with the brightness hot-keys ?!
I was having this same problem, sorry nobody has answered it yet.
From my experience, I was able to adjust the brightness with the keys after I manually entered the brightness value in the terminal (but not before doing so). All you have to do is make a simple startup script that "manually" sets the brightness on boot.
To do that:
Open gedit (assuming you want to start at level 100 or about 80%) Copy and paste this:
echo 100 | tee /sys/class/backlight/nvidia_backlight/brightness
Save as nvidiablset (or whatever)
Right-click on the file you just saved and go to Properties > Permissions Check the box "Allow executing file as program"
Then open the terminal and enter these two commands:
sudo cp nvidiablset /etc/init.d/nvidiablset sudo update-rc.d nvidiablset defaults
Then restart and you should be good to go!
I have a VAIO VPC-CW2 laptop, with Nvidia GT-320M. This module is working partially! It's never working immediately after boot-up, but sometimes specially when not plugged in to a power source, it starts working. I will be glad to help and provide more info to fix this issue. Any help is greatly appreciated.
OS = Ubuntu-12.04 (64-bit) GPU = NVIDIA GeForce GT-320M Laptop Model = Sony VAIO VPC-CW2 NVIDIA Driver Version = 295.40 (installed from Ubuntu repos)