显卡安装错误：（

[osos]

zhaojf@zhaojf-laptop:~$ sudo envyng -t


+-------------------------------------------------+
| |
| Welcome to EnvyNG |
| Developed by Alberto Milone (aka tseliot) |
| |
+-------------------------------------------------+


+-----------------------------------------------------------+
| EnvyNG Menu |
| |
| 1 - Install the NVIDIA driver |
| |
| 2 - Uninstall the NVIDIA driver |
| |
| 3 - Install the ATI driver |
| |
| 4 - Uninstall the ATI driver |
| |
| 5 - Restart the Xserver |
| |
| 6 - Restart your computer |
| |
| 7 - Exit |
| |
| NOTE: IF THE SCREEN TURNS BLACK, PLEASE TYPE ALT+F1 |
+-----------------------------------------------------------+
Please select one of the activities displayed above and press ENTER:

1
Traceback (most recent call last):
File "interface.py", line 432, in <module>
a.mainMenu()
File "interface.py", line 295, in mainMenu
a.driverMenu('nvidia')
File "interface.py", line 322, in driverMenu
self.driverPage(driver)
File "interface.py", line 216, in driverPage
candidateLen.append(len(details['candidate']))
TypeError: object of type 'NoneType' has no len()
zhaojf@zhaojf-laptop:~$

[yq-ysy]

设置好“软件源”的主服务器，确保网络畅通，多试几次即可。