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Samsung NP300E5A

Introduction

This is a compatibility guide to running Linux with the Samsung NP300E5A laptop.

This page is just for discussing using Linux on the Samsung NP300E5A. For a general discussion about this laptop you can visit the Samsung NP300E5A page on LapWik.

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Specifications

For full specifications see the Samsung NP300E5A specifications page.

NameSamsung NP300E5A
ProcessorIntel Core i3-2350M Processor, 2.40 GHz, 3MB L3
Intel Core i5 Processor 2,450M (2.5GHz, 3MB L3 Cache)
Screen15.6” 1366×768 Widescreen
RAMUp to 8GB
HDDUp to 500GB
Optical DriveDVD+-RW
GraphicsIntel HD Graphics 3000
NVIDIA GeForce GT520MX (NVIDIA Optimus technology)
Network10/100 Ethernet
Intel 802.11 abg/n

Linux Compatibility

DeviceCompatibilityComments
ProcessorWorks
ScreenWorks, some issues are present, fixableScreen starts flickering on idle (this can be fixed by editing grub, see below) or when you try using Fn Lock brightness keys; It causes terrible freeze, you can't even acces the terminal; It's fixable
HDDWorks
Optical DriveWorks
Graphics ChipWorks
VGA OutNot Tested
HDMI OutNot Tested
SoundWorks
Bulti-in MicrophoneNot Tested
Headphone JackWorks
Microphone JackNot Tested
EthernetNot Tested
WirelessWorks
BluetoothWorksSometimes, you'll have to restart bluetooth service to turn it on.
USBWorks
Card ReaderNot Tested
WebcamWorks
Touch PadWorks
Suspend/ResumeWorks

Notes

Fn Lock keys

KeyDoes it work?Comments
F1 - Samsung Easy SettingsNoI don't know if you have this, it's Windows app, shipped with laptop.
F2 - Brightness upNoflickering, total freeze
F3 - Brightness upNoflickering, total freeze
F4 - Switch screensNot tested
F5 - Disable touchpadWorks
F6 - MuteWorks
F7 - Volume downWorks
F8 - Volume upWorks
F11 - FanNo
F12 - WirelessNo
Insert - Print ScreenWorks

IMPORTANT!
I had serious issues with screen brightness, the flickering on idle interrupted my Ubuntu installation twice. Without the tweak mentioned below any attempt to change brightness will result in backlight flicker and possible display freeze. In “Brightness and Lock” settings(in GNOME/Unity) disable “Dim screen to save power”. Remember to disable it again after completeing the installation.

After you install Ubuntu, you'll have to edit the GRUB config file. Here's how:

Open a terminal and type:

gksudo gedit /etc/default/grub

Find the line GRUB_CMDLINE_LINUX=”“ and add this between quotation marks: acpi_osi=Linux acpi_backlight=vendor

Save the file, and update grub (in terminal):

sudo update-grub

Restart your computer.

The display freeze issue should be fixed now, however you'll only be able to adjust the first two or three brightness levels, if you try to increase brightness further backlight will start to flicker again, display shouldn't freeze anymore though. You can adjust brightness using the following command:

sudo intel_backlight xx

Where xx is your desired brightness level (in %).
If you would like to be able to control brightness the usual way you can use this script:

#!/bin/bash
backlight=$( sudo intel_backlight | tr -d "current backlight value: %" )
if [ "$1" = "up" ]
then
(( backlight=$backlight+11 ))
sudo intel_backlight $backlight
elif [ "$1" = "down" ] && [ $backlight -ne 0 ]
then
(( backlight=$backlight-9 ))
sudo intel_backlight $backlight
fi

For this script to work properly you should enable passwordless sudo for intel_backlight on your user account.
To do this use visudo, in terminal type:

sudo EDITOR=gedit visudo

You can replace gedit with any editor you like or skip the EDITOR variable if you're fine with vi.
Now that you are editing the sudoers.tmp file append the following line at the end:

user ALL=NOPASSWD:/usr/bin/intel_backlight

Make sure to replace user with your own username.
Save the script with whatever name you like(for ex. brightness) and copy it to /usr/local/bin. Now you can adjust brightness using 10% increments with:

brightness up

and

brightness down

to increase or decrease brightness accordingly. You can also assign brightness up and brightness down to keyboard shortcuts of your choice.

Restarting bluetooth service

Command:

sudo service bluetooth restart

Summary

Works great, except the screen, but you can fix this, using tips above.

Bluetooth issue - I'm researching why. Restarting works great, though.


Discussion

jimmyrapper, 2014/04/03 12:54

I had serious issues with screen brightness, the flickering on idle interrupted my Ubuntu installation twice. Without the tweak mentioned below any attempt to change brightness will result in backlight flicker and possible display freeze. In “Brightness and Lock” settings(in GNOME/Unity) disable “Dim screen to save power”. Remember to disable it again after completeing the installation. http://invingecancerul.org

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samsung_np300e5a.txt · Last modified: 2012/09/17 17:57 by isamu715
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