昨天我从 13.10 升级到 14.04 并想尝试 nvidia-prime。但是，我无法让它工作。我在命令行运行“nvidia-settings”时收到的消息如下：
ERROR: Error querying target relations
** Message: PRIME: No offloading required. Abort
** Message: PRIME: is it supported? no
ERROR: nvidia-settings could not find the registry key file. This file should
have been installed along with this driver at either
/usr/share/nvidia/nvidia-application-profiles-331.38-key-documentation
or /usr/share/nvidia/nvidia-application-profiles-key-documentation. The
application profiles will continue to work, but values cannot be
preopulated or validated, and will not be listed in the help text.
Please see the README for possible values and …