Yes, it works on my NF310. Try to uninstall samsung-tools (it has an dependency on an old version of easy-slow-down-manager) and install the new easy-slow-down-manager.
No news.
Uh, I am pretty sure that this is even the right THREAD.
If you read the whole thread and the related previous bug report and you are still wondering about my post... well, I will be ready for your complaints.
The presence of the "acpi_video0" directory is a strong indication of the ACPI driver problem solved by the fix mentioned above. After adding "acpi_backlight=vendor" to your kernel's paramter list it must not (well, it should not) exist. You might want to check if applying the parameter was ...
Try setting it manually: 1) Type sudo nano /sys/class/backlight/samsung/brightness => The file should contain a single number (0-7). 2) Type a small number (replacing the old one), e.g. "1" and save several times (CTRL+O, ENTER). => Your screen should lower the brightness step by step.
I'm slightly aware of this fact.
Nevertheless, it might help some fanatic open source lover and Windows hater (I was told that Linux users sometimes match this character).
Adding acpi_backlight=vendor to the kernel's parameter list in your bootloader should do the trick. For some reason, in 2.6.35-24 the ACPI driver starts feeling responsible for controlling the backlight.
In case of trouble when updating the kernel, backlight can also be controlled by manually ...