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My first time trying to use Ubuntu. I clean installed the Ubuntu 12.10-beta2 on an old Dell Dimension 4600 today. Install seemed to go fine, but after restarting and entering the requested passwords I'm taken to a purple screen with no panels, launchers or anything else--just a purple screen. I'm able to access the terminal from the screen with ctrl-alt-t, but I'm not sure at this point in my Linux training how to search for errors. Also have no Internet connection (I'm typing this on a mac), but I'll have to deal with that later. Would appreciate any suggestions.

Raja G
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Gene
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4 Answers4

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Those are the symptoms of bug 1039155, which was marked fixed by an update in Quantal today. Update and try it.

compiz (1:0.9.8.4-0ubuntu2) quantal; urgency=low

  • debian/patches/unity_support_test.patch:

    • force llvmpipe in the unity profile if we are in the grey zone, meaning: the card and drivers have opengl support, however, it doesn't met unity requirements (opengl < 1.4, no vertex shaders support…). Thanks duflu (LP: #1039155)

      Note that we already discourage them to upgrade from precise to quantal with a warning before the upgrade, however let's get a slow ui rather than none on the iso as well.

    -- Didier Roche Tue, 09 Oct 2012 15:26:52 +0200

Update: the user who filed that bug has written: "Re-opening the bug as it is not fixed for me." So this looks up in the air for now.

valse-triste
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For any errors in ubuntu, usually this command would help pin point if there was a major error. It is a way of viewing a snippet of your error log. 

tail -f /var/log/syslog

Also since you can bring up the terminal, my guess is, unity must have an issue. I recommend you run the following commands

first open the software properties window, 

sudo software-properties-gtk

go to other software TAB, and enable the Cannonical Partners and the source code, and the independent, and their source code. Also in the Ubuntu Software TAB, enable all the following sources,

If the issue is that you've installed a buggy package, it will upgrade your system, with the latest fixes. Ubuntu repositories talks about each, and what is their role. Since you running beta anyways, i'll recommend it. But you can read up and see if you want to keep them enabled after the final release. Close the window

sudo apt-get update
sudo apt-get upgrade

reboot.

If error persist, we have to reset unity, from command line

install dconf-tools

sudo apt-get install dconf-tools

Reset Compiz and Unity

dconf reset -f /org/compiz/

setsid unity
kmassada
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For me, the solution was running these command from tty1 (Ctrl+alt+f1):

dconf reset -f /org/compiz/
setsid unity
You'reAGitForNotUsingGit
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Ilya Dyachenko
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Please look at these links: Unity doesn't load, no Launcher, no Dash appears

this one solved my problem (i have Ubuntu 13.10): Unity completely broken after upgrade to 12.10?

Community
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Pooya
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