Comment # 2 on bug 1206769 from ���zg���r Arslan

(In reply to Stefan Dirsch from comment #1)
> I don't think you need this extra 
> 
>   sudo prime-select offload-set intel
> 
> This should be the default anyway (using "modeset" driver and not "intel" if
> you specify "intel2" here; confusing I know)
> 
> Could you provide a X logfile when you run into this issue? Unfortunately it
> depends on your desktop/displaymanager where you can find it. :-( Probably
> either
> /var/log/Xorg.0.log or ~/.local/share/xorg/Xorg.0.log. Probably you need a
> reset of the configuration first.
> 
>  sudo prime-select unset

The `unset` thing really worked. But when I switch intel(prime-select intel),
nvidia-smi still works normally  shouldn't it give an error?