最近,不小心將自己的Ubuntu-12.04桌面系統搞壞了,主要是由於改變了/var目錄下文件的屬主,結果桌面系統崩潰了,啓動都成問題了。不過還算幸運,可以通過其他的機器登錄到我的系統上。根據別人的系統/var目錄下的文件屬主信息,一點點還原回去了,但是沒有徹底解決問題:每次啓動電腦時,都提示錯誤“The system is running in low-graphics mode”,如圖所示:
然後,你點擊“OK”按鈕,只能通過一個單一的會話選項進入到桌面系統,很是不方便。
在網上查了一下,解決的方法很多,終於找到了一個適合我這裏問題的方案,引用如下:
I have recently received a similar issue with myPangolin Performance laptop. The folks at System 76 told me to do the following:
Click Okay and then select the option to get a terminal. (alternatively you can press ctr+alt+f1 to bring up another tty)
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
reboot
These commands did the trick for me.
參考文章:http://askubuntu.com/questions/129776/how-do-i-fix-running-in-low-graphics-mode-ubuntu-12-04