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I just installed Ubuntu 12.04 LTS on my machine alongside Windows 7.
After that, Ubuntu runs slowly on my system and sometimes it hangs. What could be the problem?

System specification:

Memory: 1 GB RAM
Hard disk: 250 GB
Processor:: Intel core 2 duo (2.53 GHz) Graphics card: 256 MB Intel integrated graphic card
Motherboard: Intel DG31PR chipset

My system information is given.

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paste.ubuntu.com/988519 –  sandy May 15 '12 at 7:52
    
i pasted my syslog content here.. –  sandy May 15 '12 at 7:53

3 Answers 3

after alot of research i got that it was unity that was causing prob.. atleast for me.. unity 2d 0r 3d it was making it slow.. now i am using cairo dock.. its light and hassle free.. no more issues of slow experience... everything else rox on ubuntu... wish all the games also supported linux.. so that u dont had to switch btwn windows n linux to play them... hope the day will arrive soon when i'll be playin nfs n all that stuff on linux.. :)

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You can install NFS on Linux with PlayOnLinux (WINE). –  RolandiXor May 16 '12 at 14:41

In my opinion it might be due too little RAM. Try to install LUbuntu (if possible) and chceck if it behaves the same. Other reason might be using Ubuntu 3D Unity when Your PC has not enough resources (VGA driver might be not working, or VGA is hasn't got enough performance)

Regards

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how to use unity 2d apart from selecting it every time i log in.. isnt there a permanent setting?? –  sandy May 15 '12 at 9:40
    
Well, I've noticed that after choosing it once I have Unity2D as default. –  Misery May 15 '12 at 10:33
    
i didnt knew it.. thanx.. unity2d made it a bit faster.. –  sandy May 15 '12 at 13:44

How much swap memory have you installed , or try gnome fall-back mode [ You will have to install gnome-shell for that ]. Also try gnome-classic and Unity 2D.

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sansan@ubuntu:~$ free -m total used free shared buffers cached Mem: 983 866 117 0 100 264 -/+ buffers/cache: 501 481 Swap: 255 180 75 –  sandy May 15 '12 at 9:39
    
Filename Type Size Used Priority /host/ubuntu/disks/swap.disk file 262140 181364 -1 –  sandy May 15 '12 at 9:42
    
@sandy- You should try gnome Classic , cinnamon , or mate. Though not a great difference in resources usage but usable. For cinnamon sudo add-apt-repository ppa:gwendal-lebihan-dev/cinnamon-stable sudo apt-get update sudo apt-get install cinnamon For classic GNOME sudo apt-get install gnome-panel I would recommend you to try all of the above.And post your conclusions. Or alternate way is installing Lubuntu or Linux Mint 12 LXDE here blog.linuxmint.com/?p=1937 –  atenz May 15 '12 at 10:26

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