Ubuntu how change display resolution settings using xrandr

Sometimes my gfx is not able to detect the resolution of monitors connected thru VGA connections. I nice work around is to use this easy tutorial to fix it.

How change display resolution settings using xrandr

http://www.ubuntugeek.com/how-change-display-resolution-settings-using-xrandr.html

Ubuntu 10.04 Lucid running on MacBook Pro

Got my hands on a MacBook Pro, nice hardware :).

I don't really like the wireless card,
intel wireless would be better,
and I would prefer Intel to nvidia gfx,
but the rest is OK.

The config is very stable running Karmic or Lucid.
Started by using Lucid 32 bit with pae kernel,
and moved to the 64 bit in April, and works great also.


Yesterday night found some time to write up:
https://help.ubuntu.com/community/MacBookPro5-5/Lucid

Seems pretty easy, and works great.

Ubuntu 9.10 Karmic Desktop HOWTO

This tutorial describes how to configure a Ubuntu/Kubuntu Desktop for daily use.


Ubuntu Tweak
Ubuntu Tweak is a GUI tool that allows you to add software sources and applications very easily.
# add key
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com FE85409EEAB40ECCB65740816AF0E1940624A220
# add this software source
deb http://ppa.launchpad.net/tualatrix/ubuntu karmic main
# install
sudo apt-get update
sudo apt-get install ubuntu-tweak

You can use Ubuntu Tweak to install the following software sources, on the "Third Party Sources":

• Medibuntu
• Opera
• Google
  

Don't install other "Third Party sources" from the ubuntu tweak list, since all of them are already included in medibuntu or ubuntu karmic sofware sources, press refresh button to reload the indexes you just added.
You can now move to the "Add/Remove" section and select:

• Audacity
• Avant Window Navigator
• Avidemux
• Cairo-Dock
• Googleearth
• Gnome Partition Editor
  
• gtk-recordMyDesktop
• Inkscape
  
• Kino
• Lastfm
• Miro Internet TV
  
• Opera
  
• Skype
• Ubuntu restricted extras - multimedia codecs, java, flash
  
• VLC media player
  
• Wine

Pick any other application that you find interesting, and select apply.

Applications Dock

• Enable "Visual Effects" in Appearance Preferences
• Use Ubuntu Tweak "Desktop->Compiz Fusion" to enabled action corners and wobbly windows.
• Use "GNOME Do" with Docky theme to enable a application dock bar, you can also use "Avant Window Navigator" as another application dock bar.
  

VirtualBox - running windows and other linux inside ubuntu



# Fast Virtual Machine (faster than VMWare) with a simple interface
sudo apt-get install virtualbox-3.1

With VirtualBox you can connect USB devices directly to your VM, and you can browse your host file system inside your VM.

Your user should belong to the group "usbusers"and "vboxusers". You can use the tool available on System->Administration->Users And Groups. You might need to log-out and log-in to make this settings active for the VM.

Configure repositories for extra Applications

If you prefer to add the repositories manually without using Ubuntu tweak goto to System->Administration->Software Sources->Third Party Software and select "Add".

# Canonical repository (Acrobat, Flash, VMWare and DB2 Express)
# enable this on the Software Sources Management tool (tab thir-party) from ubuntu/kubuntu menu

# Google Linux repository, add both to get picasa
deb http://dl.google.com/linux/deb/ stable non-free
deb http://dl.google.com/linux/deb/ testing non-free

# Virtual Box
deb http://download.virtualbox.org/virtualbox/debian karmic non-free

# medibuntu repositories
# run this command to add this repository
sudo wget http://www.medibuntu.org/sources.list.d/karmic.list -O /etc/apt/sources.list.d/medibuntu.list

To get the GPG key for Picasa and Virtual Box

# Google Key
wget -q -O - http://dl.google.com/linux/linux_signing_key.pub | sudo apt-key add -

# Virtual Box Key
wget -q http://download.virtualbox.org/virtualbox/debian/sun_vbox.asc -O- | sudo apt-key add -

# medibuntu Key
sudo apt-get update && sudo apt-get install medibuntu-keyring && sudo apt-get update

Java, Skype, Acrobat, GoogleEarth, Proprietary and Others

If you prefer to install apps on the command line, execute the following commands:

# Update the index of your repositories
sudo apt-get update

# google earth, libdvdcss2, codecs, skype, ffmpeg, amarok, lastfm, picasa, wine acrobatreader gizmo5virtualbox pidgin
sudo apt-get install googleearth libdvdcss2 ffmpeg non-free-codecs ubuntu-restricted-extras skype miro amarok libtunepimp5-mp3 lastfm picasa wine gizmo5 virtualbox-3.0 pidgin

For other very usefull apps:

# Some cool games
sudo apt-get install frozen-bubble warzone2100 chromium nexuiz

# Amarok media player, Lastfm music client
sudo apt-get install amarok libtunepimp5-mp3 lastfm

# The ubuntu-restricted-extras (installs flash, java, multimedia codecs)
sudo apt-get install ubuntu-restricted-extras

# The kubuntu-restricted-extras (install this one if you use kubuntu)
sudo apt-get install kubuntu-restricted-extras

# Mediatomb UPnP MediaServer with a nice web user interface. Share your media with PS3 and XBOX devices.
# cat /var/log/mediatomb.log to see what url is the server running point you browser to that url to configure
sudo apt-get install mediatomb


# Acrobat Reader
sudo apt-get install acroread

# Google Earth, Picasa
sudo apt-get install googleearth picasa

# Skype
sudo apt-get install skype

# Miro - The free open-source video platform.
sudo apt-get install miro

# KDE download manager
sudo apt-get install kget

# OSS voip, softphone, video conference tools
sudo apt-get install ekiga twinkle gizmo5

# image and publishing tools
sudo apt-get install krita scribus inkscape karbon

# Kexi is considered as a long awaited Open Source competitor for Microsoft Access, Filemaker and Oracle Forms.
# Kivio is an easy to use diagramming and flowcharting application
# KPlato is a project management application.
sudo apt-get install kplato kivio kexi

### Advanced usage

# visual partition editor
sudo apt-get install gparted

# To change the default JVM run the command below and select the relevant version.
# If you only have one JVM this step should not be required.
sudo update-alternatives --config java

# remote login using ssh
sudo apt-get install sshfs openssh-server

Restart, enjoy

Ubuntu 3D Desktop Howto

Small video tutorial to enabled 3D effects and add a application dock bar in Ubuntu Karmic 9.10.




This video was created in Ubuntu 9.10 Alpha, using a ATI RS480 built-in gfx chip-set on a Shuttle ST20G5. It's kind of slow because the recording software brings the frame-rate to it's knees, on this box. Otherwise it is fast enough when I'm not recording the desktop to a video.

This also works without problems with Intel or nvidia video chip-sets in Ubuntu 9.10. But for nvidia you need to install the proprietary drivers first.

How to make nouveau driver work in Ubuntu 9.10

Using the reverse engineered open source nouveau driver for nvidia cards.
Update to the latest, and install the driver.

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

# install the driver
# this will emove your proprietary nvidia driver, in case you have that installed.
sudo apt-get install xserver-xorg-video-nouveau

# gedit /etc/X11/xorg.conf

Section "Screen"
Identifier "Default Screen"
SubSection "Display"
Virtual 3840 3840
EndSubSection
EndSection

Section "Device"
Identifier "Default Device"
Driver "nouveau"
Option "NoLogo" "True"
EndSection

Run this to make sure it's working

glxinfo | grep direct
direct rendering: Yes

Note:
This driver does not support 3D. If you need 3D support you still have to install the nvidia proprietary driver.

Ubuntu 9.10 3D Desktop

Ubuntu Jaunty 9.10 alpha3 with the latest updates as of 2 AugUG 2009.
compiz, emerald and cairo-dock are enabled.




The demo was recorded with gtk-recordmydesktop and uploaded to you-tube without changes.

I used a Thinkpad T400s with a Intel gfx chipset. The cool thing here is that 3D support on the Intel gfx chipset looks to be fixed and works great with compiz on the new Ubuntu 9.10

The video was recorded at 1440x900 15fps with the apps running at same time, it looks a bit sloppy, but on the screen of the t400s it looked very fluid and smooth.

I think gtk-recordmydesktop was not able to grab all the video glory from the video card.

Sound sharing with ubuntu

Ubuntu has a supper cool feature for people who would like to share the sound between multiple machines.
This allows for a computer connected to a HI FI sound system, to share this system with several other machines.

It's also super simple to setup.


Install:

sudo apt-get install paprefs paman padevchooser

On the machine in where you want the sound system to be available to other machines
goto System->Preferences->PulseAudio Preferences and change it to look like the picture



On the system where you want where you want the sounds applications to run
Install:

sudo apt-get install paprefs paman padevchooser

goto System->Preferences->PulseAudio Preferences and change it to look like the picture


Also go to Applications->Sound & Video->Pulse Device Chooser, this will add a icon to your task bar. Check the "Start applet on session login", for future reboots.





Final step is just to select the server where you want the sound to be played.
Just on the click Pulse Audio applet and select "Default Server" and pick the server.



Enjoy