so i tried connecting it to another monitor and it did work but after installation and installing latest update and drivers the problem still exist on the main monitor :S

so after some googleing and trying deferent solutions i found out that the problem in screen brightness level,  for laptop monitor the level is  0 or less "total black"  which is weird,  and the fn key is working in wrong way "inversed" WTH!! ,

to adjust the level you need to hit f3 without fn key :S , or find the solution the hard way  by setting it in this file /etc/rc.local by adding the following line before exit 0

echo 5 > /sys/class/backlight/acpi_video0/brightness
exit 0

Where 5 is the brightness level from 0 to 10

source

Error Message:
W: GPG error: http://archive.canonical.com intrepid Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key

Try to run the following commands from terminal

sudo -i
apt-get clean
cd /var/lib/apt
mv lists lists.old
mkdir -p lists/partial
apt-get clean
apt-get update

source

sudo mkdir /media/isodir

Then use following command

sudo mount your_image_file.iso /media/isodir/ -t iso9660 -o loop

Now you should have your iso file mounted, and accessible from your desktop.

Unmount ISO File

Just use following command

sudo umount /media/isodir

Net Applications, a Web site analytics company, just published their April 2009 Web users survey, Market Share, and they found that "Linux usage share on client devices has surpassed 1% for the first time and we still have 99% to go and i think it can make it , thanks to some powerful distributions like Ubuntu,Fedora and OpenSUSE.

]]> http://dev3k.com/blog/2009/05/linux-usage-share-for-client-devices/feed/ 0 http://dev3k.com/blog/2009/04/moving-from-ubuntu-804-to-904/ http://dev3k.com/blog/2009/04/moving-from-ubuntu-804-to-904/#comments Tue, 28 Apr 2009 09:57:04 +0000 Khalil Majdalawi http://dev3k.com/blog/?p=216 So finally i got free time to upgrade to new Ubuntu Jaunty 9.04 , i was using Ubuntu Hardy 8.04 for long time and it was awesome but now its time to move , and here some new features i liked or noticed at first use for the new release :

1. New Ext4 file system support
2. Faster boot time almost 20 sec "wow" check this video
3. New network manager and its way better and easier comparing to 8.04
4. Nautilus 2.26.2 and tabs thing very useful
5. New notification area which rocks
6. The shutdown/restart/suspend options have been taken off the System main menu
7. Wallpaper transformation

last thoughts :

comparing to 8.04 its way faster,better and sexier , and here is my desktop final look