User:Scott/05

   Troubleshooting
--------------------------------
Home Page      user:scott
Tech Support   user:scott/02
Dir & Files    user:scott/03
Network        user:scott/04
Troubleshoot   user:scott/05
Laptops        user:scott/06
Resources      user:scott/07
Notes          user:scott/08 

Ububtu Support

Ubuntu Forum

http://www.google.com/search?client=ubuntu&channel=fs&q=ubuntu+forum&ie=utf-8&oe=utf-8

http://ubuntuforums.org/
 
UID=fgsupport
PW= freegeek

Launchpad

https://launchpad.net/

Troubleshoot Apps

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GConfEditor

https://help.ubuntu.com/community/GConfEditor

Alt+F2 and typing gconf-editor

The Apps section contains settings for the system
# compiz
# evolution
# gksu
# nautilus
# metacity
# panel
# Many others 

The system section contains settings for the system
# dns_sd
# gstreamer
# http_proxy
# networking
# smb
# storage

Audio

a)Mute b)sound-preferences c)alsamixer
chipset, lspic and lshw
Live CD
Older Kernel
apt-get install beep (type beep)

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Troubleshoot System

Packages Installed

dpkg -l | less

Processes Running

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ps -e | less
ls –F /proc/
cat /proc/filename
ps aux (user + process)

Processes - Startup

dmesg | tail (hardware detected during boot)

dmesg - kernel ring buffer

cat /var/log/dmesg | less
dmesg > boot_messages
dmesg | grep -i usb
dmesg | grep -i ttyS*  (show all serial ports)
dmesg | grep -i memory
dmesg | grep -i dma    (HDD(s) is running in DMA (direct memory access) mode)

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Crashes & Freezing

Overclocked CPUs - Intermittent crashes can result

Overheating - run CPU Temperature

=Panel - Rest to Default

gconftool-2 --recursive-unset /apps/panel (All panels will disappear)
rm -rf ~/.gconf/apps/panel
pkill gnome-panel 

Disappearing Toolbar

Run in terminal - compiz --replace & disown

Add Icons to Panel

indicator applet (Sound + Email icon)

indicator applet session (Log-Out Shut-Down)

Clock (Time and Date)

Menu Bar (Apps Place Sys)

Key Ring Removal

cd ~/.gnome2
cd keyrings
ls -l
rm login.keyring

ssh Keyring Removal

cd /home/bob/.ssh
cat known_hosts
ssh localhost (to see your fingerprint)
ssh-keygen -l -f .ssh/known_hosts

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TECH SUPPORT WIKI PAGES

Blank Screen after reboot

http://ubuntuforums.org/showthread.php?t=1743535

Black Screen of Death" on i845, i855

http://wiki.freegeek.org/index.php/Intel_8XX_graphic_chips

Login Screen Split

http://wiki.freegeek.org/index.php/Login_Screen_Split

Panel - Reset to Default

http://wiki.freegeek.org/index.php/Panel_-_Reset_to_Default

Printer drivers

http://wiki.freegeek.org/index.php/Printer_drivers

Screen-Magnifier Turn-off

http://wiki.freegeek.org/index.php/Screen-Magnifier_Turn-off

Setting up Evolution

http://wiki.freegeek.org/index.php/Setting_up_Evolution

Supported ISPs

http://wiki.freegeek.org/index.php/Supported_ISPs

Web cams

http://wiki.freegeek.org/index.php/Web_cams

Wireless card compatibility list

http://wiki.freegeek.org/index.php/Wireless_card_compatibility_list

Window Manager - Reset to Default

http://wiki.freegeek.org/index.php/Window_Manager_-_Reset_to_Default

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