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Samsung X460

Introduction

This is a compatibility guide to running Linux with the Samsung X460 laptop.

This page is just for discussing using Linux on the Samsung X460. For a general discussion about this laptop you can visit the Samsung X460 page on LapWik.

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Specifications

For full specifications see the Samsung X460 specifications page.

NameSamsung X460
ProcessorIntel® CoreTM 2 Duo Processor P7350 (2.0 GHz )
Intel® CoreTM 2 Duo Processor P8400 (2.26GHz)
Screen14.1“ WXGA Widescreen
RAMUp to 4GB
HDD250GB to 320GB
Optical DriveDVD+-RW
GraphicsNVIDIA GeForce 9200M GS
Network10/100/1000 Ethernet
Intel WiFi Link 5100 802.11a/b/g/n 1×2 (MIMO)

Linux Compatibility

DeviceCompatibilityComments
ProcessorYesEnable acpi-cpufreq kernel module to use this feature processor scaling feature
ScreenYesSee Notes below
HDDYes
Optical DriveYes
GraphicsYes
SoundYes
EthernetYes
WirelessYesPut firmware from http://intellinuxwireless.org/ into /lib/firmware to use wireless
BluetoothYes
ModemNot Tested
USBYes
Card ReaderYes
ExpressCard SlotNot Tested
Fingerprint ReaderYesIt works with fprint but seems to be not accurate at all.
WebcamYes

Notes

Brightness control

Add following lines to your Xorg config file to make it work (used with nvidia drivers):

Option         "RegistryDwords" EnableBrightnessControl=1"

Summary

You can enter a summary of how well the Samsung X460 works with Linux here.


Discussion

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Dominik, 2011/04/09 19:45

On open source drivers everything works out of the box in Fedora 14 and above except HDMI sound. When switching to nvidia binary driver brightness switching does not work, but HDMI sound works fine.

Rene, 2010/10/14 22:57

Hey everyone,

there is another possibility to control the brightness, tested and working in OpenSUSE 11.3: You can write into /sys/class/backlight/samsung/brightness to adjust it without leaving X (tested under GNOME). It supports 8 settings, the current can be read from /sys/class/backlight/samsung/actual_brightness.

To decrease brightness by one step (as root):

echo 0 > /sys/class/backlight/samsung/brightness


To increase brightness by one(!) step:

echo 7 > /sys/class/backlight/samsung/brightness


Greetings,

Rene

G-Red, 2009/06/05 15:42

So, here are some things, that I've made on my X460. Im using Debian 5.0 with kernel 2.6.30-rc8. But it's work fine also with 2.6.28 and up.

Brightness.


#!/bin/sh

gksu chvt 2

if [ "$1" ]; then

  BRIGHT=$1

else

  BRIGHT=80

fi

echo $BRIGHT | sudo tee /proc/acpi/video/NVID/LCD/brightness

sudo chvt 7


save this to a file, for example brightness.sh. After, make these executable with chmod +x. To change the brighness type in the terminal (with root rights) ./brightness.sh 60. This will change you brightness to 60%.

If you want to set the brightness on startup, insert this line to /etc/rc.local

echo 60 | sudo tee /proc/acpi/video/NVID/LCD/brightness

Don't forget!! You need the original driver from www.nvidia.com

Kernel config

If someone want to compile a new kernel, like me, here is my config file that i actually use on my 2.6.30-rc8 kernel for 32 bit system. I upload this to rapidshare.

http://rapidshare.com/files/241141938/config-2.6.30-rc8-686

Powersave

I don't know, how much battery life, the other user has, but on Debian it was not so long, even 2.10h. Because of that, I've try to reduce the power consumption of my system.

At first, i have replaced the standard acpi-cpufreq module, with optimized phc_intel module. You can download the actually version of phc-intel-0.3.2-5 driver from:

http://www.linux-phc.org/forum/viewtopic.php?f=13&t=2

The package includes the How-To.


If you don't need full graphic power on a battery, you should paste this lines to /etc/X11/xorg.conf


Section "Device"



#MinPower on battery, MaxPower on AC

    Option         "RegistryDwords" "PowerMizerEnable=0x1; PerfLevelSrc=0x2233; PowerMizerDefault=0x3"

    Option         "OnDemandVBlankInterrupts" "true"



EndSection


This are some entries to power save, that I've done on startup.

Write following to /etc/rc.local

#Load the phc-intel module on sturtup

modprobe phc_intel



#Brightness on startup

echo 60 | sudo tee /proc/acpi/video/NVID/LCD/brightness



#Set Wi-Fi to power safe mode on startup. After hibernate or standby

#you have to execute the line again.

echo 5 > /sys/bus/pci/drivers/iwlagn/0000\:02\:00.0/power_level



# Sound shutting down after 4sec

echo 4 > /sys/module/snd_hda_intel/parameters/power_save



#Set hard drive query to 15s (standard 4s)

echo 1500 > /proc/sys/vm/dirty_writeback_centisecs



# Laptop Mode

echo 5 > /proc/sys/vm/laptop_mode



# PCI devices power save

for i in /sys/bus/pci/devices/*/power_level ; do echo 5 > $i ; done



#Activate SATA ALPM link power Management   

echo min_power > /sys/class/scsi_host/host0/link_power_management_policy



#set CD/DVD-ROM to sleep mode

hal-disable-polling --device /dev/cdrom

I've tested:

Web Cam - works with UVC driver

Bluetooth - works

Internal Mic - works

VGA-out - works

Cardreader - works

HDMI - not tested

Modem - not tested

Finger Print - not tested

ExpressCard Slot - not tested

Sergei, 2009/03/10 02:05

Brightness control works fine under Ubuntu Intrepid with opensource Nvidia driver, but stops working once restricted driver is installed (verified with v.173, 177, 180). So it is basically a bug in NVidia proprietary linux driver.

The only way around it I wound is to use “NvClock”:http://www.linuxhardware.org/nvclock/ project. The latest “0.8 (beta4)”:http://www.linuxhardware.org/nvclock/nvclock0.8b4.tar.gz has needed support just added. Download, compile, install and use `nvclock -S xx` to control brightness without leaving X.

Antonio, 2009/09/20 20:57

Have you tried to suspend/resume in jaunty?
In my case, suspend goes OK, but during resume I get console messages about ext3-fs errors.

I can confirm that HDMI output works using nvidia propietary driver (180)

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samsung_x460.txt · Last modified: 2011/10/29 12:19 by 178.183.248.42
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