Arch Linux

zoqaeski

Member

From: /earth/australia/.

Registered: 2009-09-30

Posts: 132

Samsung laptop issues NC110

I've had this Samsung NC110 laptop for a couple of months and I'm running into difficulties controlling some of the hardware, such as the backlight and trackpad. Other Fn keys work seemingly at random.

Using xbacklight to adjust the screen brightness does nothing. On the 3.0.7 kernel I was able to adjust the brightness, but since updating to 3.1.0 it's failed. However, trying to load the psmouse-elantech modules failed on previous kernel versions, but on 3.1.0 it works. I'm yet to fully configure it using as of writing this post.

There's a samsung-laptop module that is supposed to solve most of the issues, but when I try to modprobe it, I get the following result:

# modprobe samsung-laptop
FATAL: Error inserting samsung_laptop (/lib/modules/3.1.0-4-ARCH/kernel/drivers/platform/x86/samsung-laptop.ko.gz): No such device

Apparently this is caused because the module does not yet support the NC110 model and a couple of others, although a patch exists to fix this (it just hasn't been included in the main branch yet). How can I patch the module to add support for my laptop, and is it wise to do so or should I just wait?

l4than-d3vers

Member

Registered: 2011-10-21

Posts: 10

Re: Samsung laptop issues NC110

I have the same device. Same problem.

EDIT: Brightness works for me now (with samsung-tools, haven't tried without them). Probably the new 3.2 kernel?
EDIT2: Now it's broken again

Last edited by l4than-d3vers (2012-01-24 06:23:31)

X-3me

Member

Registered: 2011-06-20

Posts: 2

Re: Samsung laptop issues NC110

I use this script to adjust the brightness: http://pastebin.com/C7gkR1qX (requires root privileges).
And here is a part of my /etc/rc.local to set the brightness after boot:

#!/bin/bash
. /etc/rc.conf
. /etc/rc.d/functions
status "Setting brightness level" /usr/local/bin/brightness reset