vijayp@ike:~$ xrandr --output HDMI1 --primary

In case you don’t know what your display is called, just run “xrandr” on its own. This is what my laptop says:

vijayp@ike:~$ xrandr
Screen 0: minimum 320 x 200, current 2880 x 1200, maximum 8192 x 8192
VGA1 disconnected (normal left inverted right x axis y axis)
LVDS1 connected 1280x800+0+0 (normal left inverted right x axis y axis) 261mm x 163mm
   1280x800       60.0*+
   1024x768       60.0
   800x600        60.3     56.2
   640x480        59.9
HDMI1 connected 1600x1200+1280+0 (normal left inverted right x axis y axis) 367mm x 275mm
   1600x1200      60.0*+
   1280x1024      75.0     60.0
   1152x864       75.0
   1024x768       75.1     60.0
   800x600        75.0     60.3
   640x480        75.0     60.0
   720x400        70.1
DP1 disconnected (normal left inverted right x axis y axis)

W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4DEF31B9A9E345C0
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 0F678A01569113AE
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7889D725DA6DEEAA
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY FD58F8C9E8EF47D2
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY AF5ED91C56978EF9
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 464AD83D4631BBEA
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6AF0E1940624A220
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5A9A06AEF9CB8DB0
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8CA7A6E8E4FA953A

Just run the following command :

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys KEYID

where KEYID is number shown in error msg

You can also import all the keys automatically. Tutorial here.

http://www.webupd8.org/2010/05/autom…l-missing.html

• Linux Introduction

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#2 Professor Norm Matloff’s Beginner’s Guide to Installing and Using Linux

• Professor Matloff’s Beginner’s Guide

Dr. Norm Matloff works for the Department of Computer Science at the University of California, Davis. He has created a fantastic guide to installing and using Linux. Designed specifically for beginners, the tutorial provides info on post-installation configuration, Linux usage, Linux applications software, dual boot issues, troubleshooting and much more.

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This Linux course, designed for new users, offers a brief history of Open Source Software and an introduction to Linux fundamentals. Basic commands are covered, as are other required topics for people who are just getting started with Linux. The Linux Fundamentals Course takes an estimated 18 hours to complete.

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This free course from the About.com Guide to Linux is meant to teach beginners how to keep a PC running with a Linux operating system. The course lasts for 14 weeks; each installment is delivered via e-mail.

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This Linux guide, which is more course than tutorial, teaches the fundamentals of network administration for Linux users. Linux topics include–but are not limited to–digital encryption, digital signatures, network configuration, network security and remote access. If you are interested in this Linux tutorial, set some time aside. It takes an estimated 30 hours to complete.

#6 The Linux System Administrator’s Guide

• Intro to System Administration

This comprehensive tutorial is designed to be an introduction to system administration for new Linux users. Some of the topics covered in this handy guide include system configuration, software installation, user account management and memory management. Users who complete this Linux tutorial will have nearly all the information they need to keep a Linux system running.

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• Summary of Useful Command-Line Tools

This guide doesn’t list every single Linux-based tool, but it does provide a comprehensive list of the most useful and important command-line tools available on GNU/Linux based operating systems. The Linux Command-Line Tools Guide is geared towards beginners and intermediate users, but it would make an excellent desk reference for advanced users as well.

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• Shell Scripting Techniques

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• Linux Introduction

The National Institute of Standards and Technology’s Real-Time Linux Tutorial offers an intensive introduction to RT Linux. Topics include–but are not limited to–single and variable period tasks, shared memory communication, FIFO communication and interrupt service routines. The tutorial includes a number of easy-to-follow examples and comprehensive instruction on the basics of RT Linux.

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• Routing and Traffic Control How To

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• Upgrading to Certified Linux Professional 10

Novell offers a number of high quality tutorials through the OpenCourseWare program. This one in particular is for Linux professionals who want to gain an understanding of the differences between version 9 and version 10 of the SUSE Linux Enterprise Server. All of the topics in this tutorial relate to topics covered in the Novell Certified Linux Professional (CLP) curriculum and include exercises to reinforce learning.

Linux doesn’t need them, so here is a simple command to get rid of them.

sudo find /home/user -name Thumbs.db -exec rm {} \;

sudo find /begin/here -type d -empty -delete

/usr/lib/ICACLIENT/config/wfclient.ini

Under the section WFClient add the following lines

DefaultPrinter = (here use the cups printer name for the printer you want)
DefaultPrinterDriver = Citrix PCL 4 Universal Driver

cd
wget http://launchpadlibrarian.net/59511828/cgroup_patch
chmod +x cgroup_patch
sudo ./cgroup_patch

Now you can either restart your computer or simply run:

sudo /etc/rc.local

1 – Expand the Software Repository List

First of all, lets make Ubuntu “see” more packages. Go to the terminal and edit your sources.list with :

sudo gedit /etc/apt/sources.list

Here is the content of my sources.list which I think is quite complete to have all the necessary applications you could ever need. So delete the whole content of your sources list and replace it with the content of mine

Save it. Now import the necessary repositories keys to avoid “apt-get” crying about some missing keys, go to the terminal and type:

sudo apt-key adv –recv-keys –keyserver keyserver.ubuntu.com DCF9F87B6DFBCBAE F9A2F76A9D1A0061 A040830F7FAC5991 2EBC26B60C5A2783

Get your system up to date with :

sudo apt-get update && sudo apt-get dist-upgrade

Now all your programs will run on the last version.

2 – Anti-Virus

Windows equivalent : AVG AntiVirus, NAV, TrendMicro, F-Prot, Kaspersky, …

Ubuntu equivalent : ClamAV, Avast

ClamAV

sudo apt-get install clamav clamtk

Access it through System Tools → Virus Scanner .

Avast

wget http://files.avast.com/files/linux/avast4workstation_1.3.0-2_i386.deb && sudo dpkg -i avast4workstation_1.3.0-2_i386.deb

Access it through Accessories → avast! Antivirus .

3 – Essential tools for compiling from sources

sudo apt-get install build-essential checkinstall cdbs devscripts dh-make fakeroot libxml-parser-perl check avahi-daemon

4 – Java runtime environment

Java is a very important thing to install, now that many programs like Azureus need it to run. So type:

sudo apt-get install sun-java6-jre sun-java6-plugin equivs

6 – Multimedia

Windows equivalent : windows media player, real player, vlc, mplayer

Ubuntu equivalent : vlc, mplayer, helix player

To have Ubuntu playing all kinds of stuff, you need to install many codecs. So on the Terminal, type:

* Installing vlc and mplayer (plays almost everything):

sudo apt-get install vlc mplayer

* Common packs

sudo apt-get install libxine1-ffmpeg gxine mencoder mpeg2dec vorbis-tools id3v2 mpg321 mpg123 libflac++6 ffmpeg libmp4v2-0 totem-mozilla icedax tagtool easytag id3tool lame nautilus-script-audio-convert libmad0 libjpeg-progs libquicktime1 flac faac faad sox ffmpeg2theora libmpeg2-4 uudeview flac libmpeg3-1 mpeg3-utils mpegdemux liba52-0.7.4-dev

* Gstreammer 0.10

sudo apt-get install gstreamer0.10-ffmpeg gstreamer0.10-fluendo-mp3 gstreamer0.10-gnonlin gstreamer0.10-pitfdll gstreamer0.10-sdl gstreamer0.10-plugins-bad-multiverse gstreamer0.10-schroedinger gstreamer0.10-plugins-ugly-multiverse totem-gstreamer

* More programs

sudo apt-get install gstreamer-dbus-media-service gstreamer-tools ubuntu-restricted-extras

* Enable dvd support

sudo apt-get install libdvdread4 && sudo /usr/share/doc/libdvdread4/./install-css.sh

* Flash

sudo apt-get install gsfonts gsfonts-x11 flashplugin-nonfree

7. Tweak your eyecandy

Ubuntu 10.04 comes with compiz fusion effects OOTB but doesn’t offer a way to customize them.

In a terminal copy/paste this:

sudo apt-get install simple-ccsm

Now navigate to System → Preferences → Simple CompizConfig Settings Manager .

8 – Missing Windows software?? Run Windows softwares in Linux!!!

Run Windows Applications such as 7zip, Google Sketchup, AutoCAD, Dreamwaver, Flash MX, Fireworks MX, IE6, IE7, Safari, Itunes, Windows Media Player and many more…

Play Windows Games in Linux like Age Of Empires, Call Of Duty, Diablo, Fear, Fallout, Far Cry, Grand Theft Auto, Half Life, Halo, Hitman, Max Payne, Need For Speed, Prince Of Persia, Sim City Star Wars, The Simsworld of warcraft , Tomb Raider, Warcraft, World Of Warcraft, Counterstrike and many other can be played.

Install Playonlinux. It’s based on wine. Wine is a compatibility layer for running Windows programs in Linux.

sudo apt-get install wine playonlinux

9 – Clipboard Management

By Default in ubuntu when u copy something from an application and closes the application u will not be able to access it from the clipboard. And also when u copy severals text in serial u only have the last on available to you in the clipboard. To solve that install either of the following but Glipper is better because it supports plugins.

Glipper

sudo apt-get install glipper

Then right click ur panel → Add to Panel then drag Clipboard Manager to ur panel

Parcellite

sudo apt-get install parcellite

10 – Archiver/ Packing software

Windows equivalent : winrar, zip, 7zip

Ubuntu equivalent : tar, unrar, p7zip, arj, unace

It’s bad when you don’t have Internet on your computer/notebook, but you have to pack/unpack something but the file format isn’t recognized by the system. To prevent from this bad situation, you can install a bunch of packing software by typing this on the terminal:

sudo apt-get install unace rar unrar zip unzip p7zip-full p7zip-rar sharutils uudeview mpack lha arj cabextract file-roller

11 – Graphical web browser

Windows equivalent : Internet explorer, firefox, opera

Ubuntu equivalent : Firefox, opera, chromium

Opera

sudo apt-get install opera

Firefox (installed by default intrepid)

sudo apt-get install firefox

Chromium (open source equivalent of Google Chrome)

sudo apt-get install chromium-browser chromium-browser-l10n

12 – Download Manager

Windows equivalent : Free download manager

Ubuntu equivalent : Multiget

MultiGet is a http/ftp downloader with a nice GUI for linux desktop users. It can run on almost all desktops without any configuration. It has many powerful functions comparing to others.

sudo apt-get install multiget

Access it through Applications → Internet → MultiGet .

13 – Graphical Email client

Windows equivalent : Outlook

Ubuntu equivalent : Evolution, Thunderbird

Evolution (installed by default in maverick)

sudo apt-get install evolution evolution-mapi

Access it through Applications → Internet → Evolution Mail .

Thunderbird

sudo apt-get install thunderbird

Access it through Applications → Internet → Mozilla Thunderbird Mail/News .

14 – Instant Messanging protocal clients

Windows equivalent : MSN messenger, Yahoo messenger, QQ, AIM, Gtalk, ICQ,IRC

Ubuntu equivalent : Empathy, Pidgin, emesene

Empathy IM Client (installed by default)

Add the related launchpad repository :
sudo add-apt-repository ppa:telepathy/ppa && sudo apt-get update

Then install it by running the following :
sudo apt-get install empathy telepathy-mission-control-5 telepathy-gabble telepathy-butterfly telepathy-haze telepathy-idle telepathy-salut telepathy-sofiasip libtelepathy-farsight0 python-tpfarsight galago-eds-feed python-galago python-galago-gtk msn-pecan

Access it through Applications → Internet → Empathy IM Client .

Pidgin

Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once. Supported chat networks: AIM, Bonjour, Gadu-Gadu, Google Talk, Groupwise, ICQ, IRC, MSN, MySpaceIM, QQ, SILC, SIMPLE, Sametime, XMPP, Yahoo!, Zephyr

Add the launchpad repository :
sudo add-apt-repository ppa:pidgin-developers/ppa && sudo apt-get update

Then install it :
sudo apt-get install pidgin pidgin-data pidgin-lastfm pidgin-guifications msn-pecan pidgin-musictracker pidgin-plugin-pack pidgin-themes

Access it through Applications → Internet → Pidgin Internet Messenger .

Emesene only for MSN Messenger.

Add the launchpad repository :
sudo add-apt-repository ppa:bjfs/ppa && sudo apt-get update

Then install it :
sudo apt-get install emesene

Access it through Applications → Internet → Emesene .

15 – VOIP

Windows equivalent : skype

Ubuntu equivalent : skype

Skype

sudo apt-get install skype

Access it through Applications → Internet → Skype.

16 – Viewing PDF files

Windows equivalent : Adobe Reader

Ubuntu equivalent : Adobe Reader

Adobe Reader

sudo apt-get install acroread

Access it through Applications → Office → Adobe Reader.

17– Adobe Air

wget http://airdownload.adobe.com/air/lin/download/latest/AdobeAIRInstaller.bin
chmod +x ./AdobeAIRInstaller.bin

sudo ./AdobeAIRInstaller.bin

Access it through Applications → Accessories → Adobe Air Application Installer.

18 – Music / MP3 / OGG Players

Windows equivalent : iTunes, Winamp

Ubuntu equivalent : Rhythmbox, Banshee, Amarok

Rhythmbox

sudo apt-get install rhythmbox

Access it through Applications → Sound & Video → Rhythmbox Music Player.

Banshee

sudo apt-get install banshee banshee-extension-ubuntuonemusicstore banshee-extension-appindicator banshee-extension-lyrics banshee-extension-mirage

Access it through Applications → Sound & Video → Banshee Media Player.

Amarok

sudo apt-get install amarok amarok-common

Access it through Applications → Sound & Video → Amarok.

19– Hard Disk Partitions Manager

Windows equivalent : Symanted Partition Magic

Ubuntu equivalent : GParted

GParted

sudo apt-get install gparted ntfsprogs menu ntfs-config

Access it through System → Administration → Partition Editor.

20 – Vector Graphics Editor

Windows equivalent : Adobe Illustrator

Ubuntu equivalent : Inkscape

Inkscape

sudo apt-get install inkscape

Access it through Applications → Graphics → Inkscape Vector Graphics Editor.

21 – Image Editor

Windows equivalent : Adobe Photoshop, Paint.Net

Ubuntu equivalent : GIMP

GIMP

Add the launchpad repository :
sudo add-apt-repository ppa:matthaeus123/mrw-gimp-svn && sudo apt-get update

Then install it with the following command :
sudo apt-get install gimp gimp-data gimp-plugin-registry gimp-data-extras

Access it through Applications → Graphics → GIMP Image Editor.

PINTA

Add the launchpad repository :
sudo add-apt-repository ppa:moonlight-team/pinta && sudo apt-get update

Then install it with the following command :
sudo apt-get install pinta

Access it through Applications → Graphics → Pinta Image Editor.

22 – 3D Graphics Applications

Windows equivalent : 3D Studio MAX

Ubuntu equivalent : Blender

Blender

sudo apt-get install blender

Access it through Applications → Graphics → Blender (windowed).

23 – Simple Yet Advanced Text Editor

Windows equivalent : Notepad ++

Ubuntu equivalent : GEdit

GEdit

sudo apt-get install gedit gedit-plugins

Access it through Applications → Accessories → Text Editor.

24 – Office Applications

Windows equivalent : Microsoft Office

Ubuntu equivalent : OpenOffice

OpenOffice

sudo apt-get install openoffice.org

Access it through Applications → Office

25 – Microsoft Visio

Windows equivalent : Microsoft Visio

Ubuntu equivalent : Dia

Dia

sudo apt-get install dia

Access it through Applications → Graphics → Dia Diagram Editor

26 – Microsoft Project

Windows equivalent : Microsoft Project

Ubuntu equivalent : OpenProj

OpenProj

wget http://nchc.dl.sourceforge.net/sourceforge/openproj/openproj_1.4-2.deb && sudo dpkg -i openproj_1.4-2.deb

Access it through Applications → Office → OpenProj

27 – Development IDE

Windows equivalent : Dreamweaver

Ubuntu equivalent : Quanta, Kompozer, NetBeans

Quanta

sudo apt-get install quanta

Access it through Applications → Programming → Quanta Plus

Komposer

sudo apt-get install kompozer nvu

Access it through Applications → Internet → Kompozer

NetBeans

sudo apt-get install netbeans

Access it through Applications → Programming → NetBeans IDE

28 – Source Control Management

Windows equivalent : TortoiseSVN

Ubuntu equivalent : RabbitVCS

RabbitVCS

Add the launchpad repository :
sudo add-apt-repository ppa:rabbitvcs/ppa && sudo apt-get update

Then install it :
sudo apt-get install rabbitvcs-nautilus
killall nautilus

Right Click on any folder or file and access the RabbitVCS submenu

29 – Graphical FTP clients

Windows equivalent : CuteFTP, SmartFTP

Ubuntu equivalent : FileZilla

FileZilla

This is great FTP program, very complete, in my opinion, the best one for linux.

On the terminal type:

sudo apt-get install filezilla filezilla-common

Access it through Applications → Internet → FileZilla FTP Client.

30 – P2P Clients / Servers, File Sharing

Windows equivalent : utorrent, azureus, emule

Ubuntu equivalent : Deluge, azureus, amule

Bittorent clients

Deluge (written in python)

Add the launchpad repository :
sudo add-apt-repository ppa:deluge-team/ppa && sudo apt-get update

Then install it :
sudo apt-get install deluge-torrent

Access it through Applications → Internet → Deluge Torrent.

Azureus: Uses Java to run, very complete but a bit heavy

sudo apt-get install azureus

Access it through Applications → Internet → Azureus.

Emule Donkey Clients

Amule

Add the launchpad repository :
sudo add-apt-repository ppa:happyaron/amule-dlp && sudo apt-get update

Then install it with the following command :
sudo apt-get install amule-dlp amule-dlp-gnome-support amule-dlp-utils-gui amule-dlp-daemon

Access it through Applications → Internet → aMule.

31 – Programs for CD burning with GUI

Windows equivalent : Nero, Roxio Easy CD Creator

Ubuntu equivalent : K3b, Brasero

K3b

Nero is available for linux,but its not free.A trial is available for 1 month usage and later it asks or activation code.But K3B is as good as Nero.Have a good feature set as Nero.

sudo apt-get install k3b k3b-data libk3b6

Access it through Applications → Sound & Video → K3B.

Brasero (installed by default in Maverick)

sudo apt-get install brasero

Access it through Applications → Sound & Video → Brasero Disc Burning .

33 – Install Vista like gadgets.

Windows equivalent : Vista Sidebar

Ubuntu equivalent : google-gadgets

Google gadgets

sudo apt-get install google-gadgets-gtk

This will complete the installation.

Now press Alt+F2, and type “ggl-gtk” to start them. You should see a small icon show up in your system tray, and a sidebar. Right click on any of them and select ‘Add Gadgets’ to show a menu. If you’d like to have Google Gadgets start automatically, go to System – Preferences – Session, click ‘Add’, paste ‘Google Gadgets’ for the name and ‘ggl-gtk’ for the command. Click OK and Close, and you’re good to go.

34 – Google Desktop

Google Desktop allows one to full text search of a user’s e-mail, computer files, music, photos, chat, and Web pages viewed,OpenOffice documents , PDF files and more .

Now similar tools already existed on Linux like beagle (supported by novell ) , meta tracker etc . However Google Desktop search is not based on any of these tools and uses its proprietary algorithms to search for files on the computer ,also being 1.0 release and more stable then these products it could be preferred over tools like beagle .

To install Google Desktop Search type the following command in the terminal window : -

sudo apt-get install google-desktop-linux

Access it through Applications → Google Desktop → Google Desktop

Now after choosing appropriate option through Applications → Google Desktop → Google Desktop Preferences, you would find Google Desktop icon in the bar at the top of the screen , now it would automatically scan and index files on computer and store it in local database which could be searched using web browser .

35 – Photo Management

Google Picasa

Google Picasa is an extremely professional good looking photo management application available on Windows ,Linux and Mac OS. Now Google Picasa has a number of features that many photo management software on Linux dont have further Google Picasa looks very user friendly as compared to similar open source application available on linux . Now Google Picasa for Linux is not a native linux application but runs on Linux thru application layer called wine which allows many windows application to run flawlessly on Linux.

Now to install Google – Picasa type the following command in the terminal window

wget http://dl.google.com/linux/deb/pool/non-free/p/picasa/picasa_3.0-current_i386.deb && sudo dpkg -i picasa_3.0-current_i386.deb

Access it through Applications → Graphics → Picasa → Picasa

36 – Map Viewing and Management

Google Earth

To install Google Earth type the following command in the Terminal Window.

sudo apt-get install googleearth

After downloading is over you will get a screen like this press ¨Yes¨ to accept the license agreement and complete software installation.

Now you can launch Google Earth from Application → Internet → Google Earth

37 – Gmail Notification

Checkgmail

If you would like to get notified when you have a new mail in your google mail account, checkgmail is for you. To install Checkgmail type the following command in the Terminal Window.

sudo apt-get install checkgmail

Now you can launch it from Application → Internet → CheckGmail

38 – Configure Firewall
If you are concern about your security, then it is pertinent that you activate the firewall and prevent any unauthorized access to your computer.

UFW is installed by default, but if you need a graphical interface, install GUFW.

sudo apt-get install gufw

39– Gnome Do

Gnome Do is a small application that allows you to search and do things faster and more efficiently in your Ubuntu machine. It is similar to QuickSilver in Mac and Launchy in Windows. For those who have not tried Gnome Do before, it might take some time for you to get used to it. But once you’re hooked to it, there will be no turning back for you.Gnome Do also comes with a dock interface that you can use it like any other docks.

sudo apt-get install gnome-do

Now you can launch it from Application → Accessories → Gnome Do

40 – Ubuntu Tweak

Ubuntu Tweak allows you to tweak your system settings, all in one place. You can install new applications, customize your desktop settings, configure your startup applications, changing the system filetype association and many more tweaks in this single application.

Add the launchpad repository :
sudo add-apt-repository ppa:ubuntu-tweak-testing/ppa && sudo apt-get update

Then install it with the following command :
sudo apt-get install ubuntu-tweak

Then access it through Applications → System Tools → Ubuntu Tweak

App Runner

App Runner is a small open source utility that makes it very easy to run any type of program/executable/script on any distro/OS that uses the nautilus file manager: Debian/Ubuntu/Super OS/Fedora/etc

wget http://hacktolive.org/files/app_runner/App_Runner_0.2.deb && sudo dpkg -i App_Runner_0.2.deb

Then right-click the file -> Scripts -> Run This App or Run This App (root)

I got the following error.

You have not chosen to trust "AddTrust External CA Root", the issuer of the server's security certificate.

This solved my problem:

sudo cp /usr/share/ca-certificates/mozilla/*.* /usr/lib/ICAClient/keystore/cacerts/

After upgrading to 10.10 the top edge of every page was cut off.
I ran into a post on loxdev.knc.nc where a the same problem was explained.

1. Remove the brother-lpr-driver-extra & brother-cups-wrapper-extra from Synaptic Package Manager
2. Download the drivers from the Brother site
3. Then issue the following command

# sudo mkdir -p /usr/share/cups/model
# sudo mkdir -p /var/spool/lpd/dcp353c
# sudo dpkg -i --force-all dcp353c*

4. Download the brscan2 from the Brother site and then

# sudo dpkg -i brscan*

5. Then give the scanner the proper permissions

# gksudo gedit /lib/udev/rules.d/40-libsane.rules

6. Add this to the end of the hardware list of the file

#Brother DCP-357C
ATTRS{idVendor}==”04f9″, ATTRS{idProduct}==”01e4″, ENV{libsane_matched}=”yes”

7. And finally restart udev:

# sudo service udev restart