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I am unable to see any Desktop in ubuntu. When I turn on computer, it just shows a black screen, no wallpaper.

However, if I open a program say chrome and try switching to Desktop with Alt + Tab, I still keep seeing an image of chrome window on screen. Here's a screenshot of the Desktop :

That's how Desktop looks

I am running Ubuntu 12.04

Output of lspci -nnk | grep -iEA3 "(graphics|vga)" :

00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02)
    Subsystem: Lenovo Device [17aa:3920]
    Kernel driver in use: i915
    Kernel modules: i915

Output of uname -a :

Linux js 3.2.0-51-generic-pae #77-Ubuntu SMP Wed Jul 24 20:40:32 UTC 2013 i686 i686 i386 GNU/Linux

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closed as off-topic by gertvdijk, jokerdino Sep 2 '13 at 14:33

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Bug reports and problems with the development version of Ubuntu should be reported on Launchpad so that developers can see, track and fix these issues." – gertvdijk, jokerdino
If this question can be reworded to fit the rules in the help center, please edit the question.

    
This should not happen and looks like a bug to me. Have you installed all system updates and rebooted? What hardware do you have, especially graphics? Please include the output of lspci -nnk | grep -iEA3 "(graphics|vga)" and uname -a in your question. –  gertvdijk Aug 26 '13 at 19:28
    
@gertvdijk I have added the output of those commands. And some updates are pending. –  Jatin Aug 26 '13 at 19:36
    
This appears to be common Intel graphics hardware from 2010 and it should be working just fine, really! The kernel is a little bit outdated, but it isn't that old, so I guess this is just a bug. Are you sure you haven't made any changes to the system regarding graphics? (packages, Xorg configuration, etc.) –  gertvdijk Aug 26 '13 at 19:40
    
Yes, I didn't make any changes regarding graphics. I am installing the updates, though. Let's see if that helps. –  Jatin Aug 26 '13 at 19:43
    
@gertvdijk Well, installing updates didn't help. I did use the ubuntu tweak tool to change fonts and stuff and hide Desktop icons. Although, it worked fine for several days after that. Could that have something to do with it? I used the dconf-editor to hide icons (mentioned here : askubuntu.com/questions/116741/…) –  Jatin Aug 26 '13 at 20:00