Computing/Linux/Ubuntu

Reference

 * Ubuntu Documentation
 * Ubuntu Wiki
 * Ubuntu Guide
 * Ubuntu Feisty
 * Ubuntu Forums
 * Ubuntu Daily
 * Ubuntu Geek - Tips, Howtos, Tutorials and Articles about Ubuntu Linux
 * Ubuntu in Launchpad - forums, bug reports, etc

Downloading

 * Torrents
 * Mirrors of Ubuntu
 * MIT Media Lab Ubuntu mirror
 * Northeastern University College of Computer Science Ubuntu mirror

Gutsy Gibbon

 * Tour of 7.10
 * 7.04 to 7.10 upgrade guide
 * Reviews: Wired, Slashdot, Digg

Troubleshooting

 * high processor activity caused by Nautilus

Installation notes

 * Ubuntu How-To from alma.edu
 * Ubuntu How-To from cornell.edu
 * My Ubuntu Installation
 * Skype or use Medibuntu repository

ATI

 * ATI Binary Driver Howto from ubuntu.com
 * ATI fglrx proprietary driver
 * Proprietary drivers in Feisty
 * ATI & Kernel 2.6 from ArchLinux wiki
 * Radeon won't work on AIGLX because of its proprietary drivers?
 * AMD 8.42 Driver Brings Fixes, AIGLX!
 * fglrx 8.42.3 - finally with AIGLX support
 * Gusty ati 8.42.3 fglrx - with AIGLX support how to
 * Enabling Compiz Fusion On An Ubuntu 7.10 Desktop (ATI Mobility Radeon 9200) from Howto Forge
 * Hardware 3D acceleration on an ATI Radeon 9600 mobile
 * ATI Mobility Radeon 9600/9700 under Ubuntu 8.04 Hardy

Hitachi CML174SXW
xorg.conf entry: Section "Monitor" Identifier "CML174SXW" HorizSync 64.0 - 80.0 VertRefresh 60.0 - 75.0

Modeline "1280x1024" 151.83 1280 1360 1544 1888 1024 1024 1027 1072
 * 1) V-freq: 75.00 Hz // h-freq: 80.42 KHz

Additional software repositories

 * Medibuntu (Multimedia, Entertainment & Distractions In Ubuntu) is a repository of packages that cannot be included into the Ubuntu distribution for legal reasons (e.g., libdvdcss, VideoLAN, Mplayer, xine, etc); adding repositories

deb http://download.skype.com/linux/repos/debian/ stable non-free deb http://dl.google.com/linux/deb/ stable non-free deb http://archive.canonical.com/ubuntu gutsy partner
 * /etc/apt/sources.list:
 * 1) CANONICAL COMMERCIAL REPOSITORY (Hosted on Canonical servers, not Ubuntu
 * 2) servers. RealPlayer10, Opera, DesktopSecure and more to come.)

Miscellaneous
update-alternatives - maintain symbolic links determining default commands

Hardware
Config file locations: /etc/modprobe.d/blacklist /etc/default/linux-restricted-modules-common

Software

 * Compiz Fusion Wiki
 * Enabling Compiz Fusion on Radeon
 * Compiz keyboard shortcuts:
 * SHIFT+ALT+UP = initiate window picker
 * ALT+F7 = initiate 'move windows'
 * CTRL+ALT+D = show desktop
 * ATI with AIGLX

Troubleshooting

 * Problem: CDRW is not recognized
 * Error message in /var/log/messages: ata2.00: failed to set xfermode (err_mask=0x4)


 * Solution from Feisty doesn't recognize cd burner:
 * Add the word 'irqpoll' (without quotes) to the kernel line in /boot/grub/menu.lst

Error in /var/log/Xorg.0.log:
 * Problem: Xorg starts up but no DRI with ATI Radeon 9600 Pro, Intel i875P chipset
 * unable to acquire AGP, error "xf86_ENODEV", cannot init AGP (Gutsy Gibbon)
 * (EE) fglrx(0): [agp] unable to acquire AGP, error -1023 (Hardy Heron)


 * Solutions:
 * A generic solution from ATI: X Fails to Load on Systems with Linux Kernel Version 2.6.x
 * An exact solution that worked: AGP not detected on Intel 8285P and E7205 chipsets using kernels higher than 2.6.17
 * # rmmod i82875p_edac</tt>
 * # rmmod edac_mc</tt>
 * # rmmod fglrx</tt>
 * # rmmod intel-agp</tt> (or another appropriate module from /lib/modules/`uname -r`/kernel/drivers/char/agp</tt>)
 * # rmmod agpgart</tt>
 * # modprobe agpgart</tt>
 * # modprobe intel-agp</tt> (or another appropriate module from /lib/modules/`uname -r`/kernel/drivers/char/agp</tt>)
 * # modprobe fglrx</tt>
 * blacklist the modules e7xxx_edac</tt> and edac_mc</tt>; e.g., add the following two lines at the beginning of /etc/modprobe.d/blacklist</tt>:
 * blacklist i82875p_edac</tt>
 * blacklist edac_mc</tt>