just do it

the system is running in low-graphics mode 解决办法【ubuntu】

1.利用Ctrl + Alt + (F1~F6中的某一个) 进入纯命令模式,输入用户名,密码

2.解决方案

a.

sudo apt-get install fglrx  
sudo reboot

b.

sudo apt-get update  
sudo apt-get purge flglrx  
sudo reboot 

c.

sudo chown lightdm:lightdm -R /var/lib/lightdm  
sudo chown avahi-autoipd:avahi-autoipd -R /var/lib/avahi-autoipd  
sudo chown colord:colord -R /var/lib/colord  
sudo reboot  

d.

sudo add-apt-repository ppa:ubuntu-x-swat/x-updates    
sudo apt-get update    
sudo apt-get upgrade   
sudo reboot  
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