运行 optirun -b none nvidia-settings -c :8 结果如下：
[  547.435686] [ERROR]Cannot access secondary GPU - error: Could not load GPU driver

[  547.435714] [ERROR]Aborting because fallback start is disabled.


试了好多方法一直不行，内核是4.10.0-041000-generic ，不知怎样处理？