Difference between revisions of "User:Scott/05"

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Useful Troubleshooting Commands
+
    '''Troubleshooting'''
 
+
--------------------------------
 
  Home Page      [[user:scott]]
 
  Home Page      [[user:scott]]
  Tech Support  [[user:scott02]]
+
  Tech Support  [[user:scott/02]]
  Dir & Files    [[user:scott03]]
+
  Dir & Files    [[user:scott/03]]
  Network        [[user:scott04]]
+
  Network        [[user:scott/04]]
  Troubleshoot  [[user:scott05]]
+
  Troubleshoot  [[user:scott/05]]
 
+
Laptops        [[user:scott/06]]
 +
Resources      [[user:scott/07]]
 +
Notes          [[user:scott/08]]
  
 
{{TOC limit|limit=1}}
 
{{TOC limit|limit=1}}
__TOC__
+
__TOC__  
  
==Ububtu Forum==
+
=Ubuntu Forums=
 +
==ubuntuforums.org==
 +
http://www.google.com/search?client=ubuntu&channel=fs&q=ubuntu+forum&ie=utf-8&oe=utf-8
 +
 
  http://ubuntuforums.org/
 
  http://ubuntuforums.org/
+
 
 
  UID=fgsupport
 
  UID=fgsupport
 
  PW= freegeek
 
  PW= freegeek
==Troubleshoot==
+
 
===Startup===
+
==Launchpad==
  dmesg | tail (hardware detected during boot)
+
https://launchpad.net/
===Processes===
+
 
 +
[[#top|top]]
 +
 
 +
=Application Configuration=
 +
==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
 +
 
 +
[[#top|top]]
 +
 
 +
=Installed Packages=
 +
dpkg -l | less
 +
 
 +
=View Processes PID=
 +
==Running Processes==
 +
top
 +
 
 +
==All Processes==
 +
ps -e | less
 +
ps aux (user + process)
 +
 
 +
==Analyse /proc/ dir==
 
  ls –F /proc/
 
  ls –F /proc/
 
  cat /proc/filename
 
  cat /proc/filename
 +
 +
==Startup Processes==
 +
dmesg | tail (hardware detected during boot)
 +
 +
=dmesg output for 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)
 +
 +
[[#top|top]]
 +
 +
=Crashes & Freezing=
 +
==Over-Clocking==
 +
Overclocked CPUs can result in Intermittent Crashes
 +
 +
==Overheating==
 +
see [http://wiki.freegeek.org/index.php/CPU_Temperature CPU Temperature]
 +
 +
=TOOL-BARS - Repairing Corrupted=
 +
 +
==PANEL Rest - to Default #1==
 +
go to home folder -> View "hidden files"
 +
oem/.gconf/apps/panel (delete panel)
 +
Logon-Out / Log-In
 +
 +
==Panel - Reset to Default #2==
 +
 +
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)
 +
 +
=Audio Things to check=
 +
 +
a)Mute b)sound-preferences c)alsamixer
 +
chipset, lspci and lshw
 +
Live CD
 +
Older Kernel
 +
apt-get install beep (type beep)
 +
 +
=Keyring Removal=
 +
 +
==Password Keyring 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
 +
 +
[[#top|top]]
 +
 +
=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
 +
 +
[[#top|top]]

Latest revision as of 01:47, 12 January 2012

   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 

Template:TOC limit

Ubuntu Forums

ubuntuforums.org

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/

top

Application Configuration

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

top

Installed Packages

dpkg -l | less

View Processes PID

Running Processes

top

All Processes

ps -e | less
ps aux (user + process)

Analyse /proc/ dir

ls –F /proc/
cat /proc/filename

Startup Processes

dmesg | tail (hardware detected during boot)

dmesg output for 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)

top

Crashes & Freezing

Over-Clocking

Overclocked CPUs can result in Intermittent Crashes 

Overheating

see CPU Temperature

TOOL-BARS - Repairing Corrupted

PANEL Rest - to Default #1

go to home folder -> View "hidden files"
oem/.gconf/apps/panel (delete panel)
Logon-Out / Log-In

Panel - Reset to Default #2

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)

Audio Things to check

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

Keyring Removal

Password Keyring 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

top

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

top