I previously had ubuntu 10.10 installed and upgraded to 11.04. However, desktop is same 10.10 (gnome) as despite the upgrade. How can I disable the Gnome and activate Unity instead?
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I've been giving 11.04 a test run this evening. I was pleasantly surprised to see that it's just good old GNOME that I've come to know and love!– boehjApr 28, 2011 at 19:26
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3Unity won't run if you don't have the right drivers, you might need to run 'additional drivers', then reboot and choose "ubuntu" from the log in screen.– Jorge CastroApr 28, 2011 at 19:32
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@Jorge Castro i clicked additional drivers, but nothing happened. there is no a window or another thing.– burakApr 28, 2011 at 20:02
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what is your graphics card? - type lspci | grep VGA in a terminal– fossfreedom ♦Apr 28, 2011 at 20:14
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@fossfredoom NVIDIA GT 240M CUDA 1 GB– burakApr 28, 2011 at 20:20
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4 Answers
You should be able to activate the NVIDIA Driver in the Additional Drivers Window available when you login as Ubuntu Classic and navigate to System > Administrator > Additional Drivers
answered Apr 28, 2011 at 22:12
Unity is a plugin for Compiz Fusion. It works well with Gnome, actually I don't think it works with anything rather than Gnome (someone might want to follow up on this).
To enable Unity, you have to enable the plugin in your Compiz settings. I'd suggest an app called CCSM (CompizConfig Settings Manager) -- a visual interface to Compiz settings. You can get it from the Software Center. Find Unity in the list and enable the plugin.
Update: What if the plugin is already enabled?
Okay what I'm gonna suggest is dangerous, but worked for me. Remember the command ccsm, you might have to use that from the terminal to launch the manager again. Create a shortcut to your gnome terminal on your desktop (gnome-terminal). Go to the Compiz settings, go to Preferences and reset everything to defaults.
You might experience some display problems at this point, if your desktop gets unresponsive press Ctrl+Alt+1, login and type sudo service gdm restart, you might end up with a bare desktop without a single menu (I did). Run the terminal, run ccsm and enable the Unity plugin, it'll ask you about some conflicts, ask Compiz to resolve them and disable all plugins conflicting with Unity.
Worked for me at least. Let me know how it goes ;) and good luck!
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i installed CompizConfig Settings Manager, and Unity is active(have tick). but the result is still same.– burakApr 28, 2011 at 19:27
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@burak I edited my answer to include a sort of hack I used to get this running, let me know if it works for you. Apr 28, 2011 at 19:32
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@kovshenin when i restart, there is no unity 2d(i saw on internet). there are Recovery console, Ubuntu, Ubuntu classic, Ubuntu classic(no effect), Ubuntu(safe mode), User definition session. maybe the problem is here– burakApr 28, 2011 at 19:57
If you are not seeing any available drivers, check your software sources and make sure that the main, universe, multiverse and restricted repos are enabled.
Then, if you are comfortable in the terminal:
sudo apt-get install nvidia-current nvidia-settings
If you are more comfortable with synaptic/software center, you can open either one and search for the nvidia drivers, then install them (the packages name are nvidia-current and nvidia-settings).
answered Jun 26, 2011 at 21:39
Log out and then you will see the GDM, click on the drop down menu and select Ubuntu Unity
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2There is no Ubuntu unity.There are Recovery console, Ubuntu, Ubuntu classic, Ubuntu classic(no effect), Ubuntu(safe mode), User definition session. I selected Ubuntu.– burakApr 28, 2011 at 20:06