I. ubuntu14.04 installation, brightness setting, video card setup and other integrated explanations

One. ubuntu14.04 Installation

Installation procedure is very simple, I believe you just know and decide to install Ubuntu, you will not install the problem, download URL http://www.ithome.com/html/soft/81539.htm. After downloading the ISO I use the U disk to burn, engraved the software is Ultro, this does not say.

Two. After the installation, the screen brightness is very bright, and can not be adjusted, and the fan turned, the sound is very large, this is due to Ubuntu initial default settings and graphics switch issues.

1. Adjust brightness

Open the terminal Black window, the Quick Start ctrl+alt+t, another installed on Ubuntu need to set root, because the installation process you set up a normal user name and password, now set root, that is, super User, enter the terminal black window, enter the command sudo passwd root, Then set the password to the end of the confirmation (the password is not displayed although the input is good). You can now enter SU root, which means to enter the Superuser (super root shorthand)

Terminal Input Code:

sudo gedit/etc/default/grub

Found in open file

Grub_cmdline_linux= ""

Change into

grub_cmdline_linux= "Acpi_backlight=vendor"

You can save it after you change it.

then upgrade grub:

sudo update-grub

After restarting, press FN to adjust the

Used to set the brightness initial value:

Terminal Input Code:

sudo gedit/etc/rc.local

If the failure does not jump out, turn off the terminal Black window and start again into root (via command: su root), enter sudo gedit/etc/rc.local

Add an additional sentence ( before exit 0 ) in the file that pops up:

echo >/sys/class/backlight/intel_backlight/brightness

Here I set 100, feel fit. The specific value of their own settings, set 100 OK, use the time can be adjusted by the FN key.

OK, to this screen brightness problem is completely resolved.

2. Graphics switching issues

(1) If Bumblebee was previously used, uninstall

Code: sudo apt-get purge bumblebee*

(Do not look, do not install, do not have to do this code again)

(2) If LIBVDPAU-VA-GL1 is installed, deactivate or unload (will cause Nvidia settings to crash)

Code: sudo apt-get purge libvdpau-va-gl1

(He does not pretend, do it all over again)

(3) installation drive and Nvidia-prime package

Code:sudo apt-get install nvidia-xxx nvidia-settings-xxx nvidia-prime
XXX is the driver version number, please replace it (I use 319, recommend 319, do not use the latest is

sudo apt-get install nvidia-319 nvidia-settings-319 nvidia-prime )

(4) Install a panel indicator called Prime-indicator to switch the video card

Code: sudo add-apt-repository ppa:nilarimogard/webupd8
sudo apt-get update
sudo apt-get install Prime-indicator

(If the sudo apt-get update fails, restart the Terminal black window and re-enter the three commands)

After the installation is complete, in "Search your computer and online resources", that is, the top left, search for the Nvidia X Server settings, turn on the switch video card for Intel

After a while, or after a reboot, the computer's brightness and fan turns out to be a problem.

Filed under: two. ubuntu14.04 3D effects Settings

I. ubuntu14.04 installation, brightness setting, video card setup and other integrated explanations