如何安装显卡 出现问题

[zhoujingrui1113]

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()
不能正确安装

[xzyahoo]

好巧，我也是这个问题

[yq-ysy]

确保已经连上网了，因为envyng需要从网上下载文件。
如果能看到一个进度条，就多试几次，让进度条达到100%。

另外找到国外的帖子，参考一下：
http://ubuntuforums.org/showthread.php?t=1021516&page=2