Gnome 3 taskbar screen Solution

Recently, due to the need to compile the Android source code, we uninstalled the original debian and installed Ubuntu 11.10. Then we felt that Unity was not easy to use and uninstalled Unity, after Gnome 3 is installed, the system will find the problem after it is started and restarted. the taskbar screen is displayed. My card is a and the official private driver is installed. The problem lies here. If the open source driver is installed, there will be no problem with the screen. To solve this problem, first uninstall the private driver, if you download it from the official website. run file, and then install it manually. Uninstall the driver first: run the following commands: www.2cto.com cd/usr/share/ati/sudo. /fglrx-uninstall.sh if you are using Ubuntu built-in additional driver Manager installed private driver, then execute the following command: sudo apt-get autoremove fglrx note, private driver must be uninstalled clean, otherwise, you may not be able to log on to Gnome Shell after installing the open-source driver. Next, install the open-source driver and run the following command: sudo add-apt-repository ppa: xorg-edgerssudo apt-get updatesudo apt-get upgrade after installation is complete, restart and run: www.2cto.com glxinfo | grep-I opengl. If the following result is displayed, the update is successful. Now: OpenGL vendor string: X. org OpenGL renderer string: AMD 6400 seriesOpenGL version string: 2.1 Mesa 7.12-devel OpenGL shading language version string: 1.20 OpenGL extensions: renderer string is followed by your graphics card model. The compatibility of private drivers in Ubuntu is not as good as that of open-source drivers. If you use a private driver, you must install Gnome 3 on a screen. Pay attention to it when installing the system. Blog from Wang Rui