Samsung NC10 N130 backlight in F14

[Gödel]

Samsung backlight still not working by default on these machines? I thought this was the kernel default but seems not to work for me. You can install the module manually though:


get samsung-backlight.c from https://github.com/gregkh/samsung-ba...ng-backlight.c

create this Makefile:

obj-m := samsung-backlight.o
 
KERNELDIR ?= /lib/modules/$(shell uname -r)/build
PWD := $(shell pwd)
 
all:
	$(MAKE) -C $(KERNELDIR) M=$(PWD)
 
clean:
	rm -f *.o *~ core .depend .*.cmd *.ko *.mod.c
	rm -f Module.markers Module.symvers modules.order
	rm -rf .tmp_versions Modules.symvers

then change to the directory containing Makefile and samsung-backlight.c and build and install:

sudo yum install gcc kernel-devel
make
sudo cp samsung-backlight.ko /lib/modules/$(uname -r)/extra/
sudo depmod

Then reboot, and Fn + Up/Down should control brightness.

[DukeNukem]

You may wish to use the samsung-backlight.c modded by Voria, http://www.voria.org/forum/index.php

https://launchpad.net/~voria/+archive/ppa

It supports more samsung models and is regularly updated.

[Gödel]

That works too, I tried the latest version from https://launchpad.net/~voria/+archive/ppa/+packages,

I also tried the samsung tools package but it generates selinux errors and needs to be run in permissive mode. That needs fixing. It looks like a nice package but I only really want backlight level control and the extra feature to turn the backlight off can be set as a keyboard shortcut (eg for F5) with command:

xset dpms force off

in gnome System -> Preferences -> Keyboard Shortcuts -> Add