I have a Samsung NF210 and while the Fn-Brightness keys are registering (that is the brightness pop-up with the amount of brightness bar is showing and changing) the actual brightness is not changing. Volume works fine.
I have tried adding
to grub as suggested by another post with a similar, but not exact, laptop. However that didn't work. It has worked with very recent versions of Fedora and Ubuntu, but in fairness overall many distros have problems with this particular laptop.
Any tips on troubleshooting or solving this issue?
Last edited by acegopher (2013-02-09 18:23:58)
I wanted to let you know I found the solution to this problem, and it was very easy!
All you need to do to get the backlight working with a Samsung NF210 in Crunchbang, or any Debian Wheezy system is to edit (as root) /etc/default/grub:
sudo vi /etc/default/grub
and add "acpi_backlight=vendor" to GRUB_CMDLINE_LINUX_DEFAULT so it looks like:
Then just update grub:
Reboot and your backlight adjustments will work!