Ubuntu Tips

UBUNTU TIPS 12.10 and higher

X11 startup options can be set in /etc/X11/xorg.conf

List hardware via terminal

• sudo lshw (complete list)
• sudo lshw -class video (only video settings)

ACER 7715Z No display with ubuntu 10.12 or older:

•  in /etc/default type: via terminal: sudo nano grub
•  change next 2 lines in the grub file
•  GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"
•  GRUB_CMDLINE_LINUX="acpi_osi=Linux"
•  And save and quit the file.
•  now run sudo update-grub (now you can turn on display by using <FN>+<LCURSOR> )

Booting text only no GUI:

•  in /etc/default type: via terminal: sudo nano grub
• change to GRUB_CMDLINE_LINUX_DEFAULT="text"
• now run sudo update-grub

ex installing cheese (webcam)  sudo apt-get install cheese

 

Shortcut for starting terminal : <CTL><ALT><T>

 

safe reboot hold <ALT><SYSREQ> and type <R><E><i><S><U><B>

 

when single program hangs press <ALT><F2> and type xkill <ENTER>

 

Backup using rsync:

• rsync -aq /* /media/dirk/SG1TB/backup/ --exclude={/dev/*,/media/*,/proc/*,/sys/*,/run/*}
• --progress --stats

Remove all files/folders recursively in current folder without prompting!!!

• rm -rf *  (be careful!)

Show all connected IP's in local network:

• sudo arp-scan --interface=wlan0 192.168.2.1/24

Boot From USB LIVE STICK 12.10 for ACER7715Z to solve black screen problem.

•  at start of booting press <SHIFT> for boot options
• Then <F6> for extra options and add acpi_osi=Linux at end of kernel options
•  (after -- Type here)