Gnome3 Flower Screen Solution

2. Install Gnome3
Check your source for any problems before you install, and if you are still available after the upgrade. In the domestic recommended use of 163 of the source, stable and fast.

1	sudo vi/etc/apt/sources.list

Check if no problem, open the terminal, enter:

1	sudo apt-get install Gnome-shell

After installation, click on the upper right corner menu, log off.
A gear is visible next to the Login interface input box, click to select Gnome, login.

3. About graphics Driver
If you are N card , if you find a flower screen or splash screen after login, please install the private drive of n card.
Specific measures:
1.) System Setup > hardware > Additional drive
After clicking in, you can see that there are several drivers, which have a recommended drive, click Activate.

2.) can also download their own hardware drivers at the NVIDIA website and install them.
Note: If there is a private drive after the splash screen situation, may be due to your memory is too small, please set the video memory size inside the Bois.

If you are a card , preferably with your own open source drive, if the installation of ATI official (private) drive, must flower screen.
I first installed 11.10 on the company's desktop (n card), then installed a private drive, feeling pretty good, then go home in my Notebook (a card) also installed a private drive, the result ... Of course it was a tragedy.

If you have no intention of installing a private drive, there is no way to do it, here is a way to uninstall the private drive of a card and install open source drive.
1.) Uninstall the previous ATI driver.
If you have previously installed a driver manually you need to perform the following lines, if not, skip.

1 2 3 4

cd/usr/share/ati/ sudo./fglrx-uninstall.sh sudo apt-get remove Xorg-driver-fglrx Xserver-xorg-video-ati XSERVER-XGL

2.) Install Open source drive:
Terminal input:

1 2	sudo add-apt-repository ppa:xorg-edgers sudo apt-get update && sudo apt-get upgrade

After reboot, enter:

1	Glxinfo |grep-i OpenGL

1 2 3 4 5

OpenGL Vendor string:x.org OpenGL renderer string:gallium 0.4 on AMD RV620 OpenGL version string:2.1 Mesa 7.1 2-devel OpenGL Shading language version string:1.20 OpenGL extensions:

If the OpenGL renderer string is behind your video card model, congratulate you on the success of the upgrade.

3.) Uninstall Open Source drive:

1 2	sudo apt-get install ppa-purge sudo ppa-purge xorg-edgers

Note: Remember to uninstall the private drive cleanly. These include Fglrx.

1	sudo apt-get autoremove Fglrx

11.10 In this way to upgrade successfully, overall, this version is still very to the force, with the production of easy, Gnome3 very to the force, especially alt+f2 more user-friendly ...
In short, the bright spot is more, as far as you are not happy, I am anyway cool.