Samsung R730: adjust the brightness of the screen with Ubuntu
Rest of my adventures with my brand new Samsung R730 and the installation of Ubuntu. I reassure everybody: all worked perfectly! The only small issue I encountered was about the adjustment of the brightness with the FN key. The applet was correctly shown, but there was no effect.
After some researches, to fix the issue, I had to:
- In the BIOS, set the brightness adjustment to « User » and not to « Auto » anymore.
- Install the packages samsung-backlight, samsung-tools, nvidia-bl-dkms, after adding the repository ppa:voria/ppa. In order to do this:
sudo add-apt-repository ppa:voria/ppa
sudo apt-get update && sudo apt-get upgrade
sudo apt-get install samsung-backlight samsung-tools nvidia-bl-dkms - Change a line in the configuration of grub (as surprising as it sounds):
gksudo gedit /etc/default/grub
The line to update (the modification is in bold) :
GRUB_CMDLINE_LINUX_DEFAULT= »quiet splash acpi_backlight=vendor«
Then :
sudo update-grub
- A reboot and now it should works!
And to switch:
Really impresive, isn’t it?