optirun glxspheres don't workable

[when123]

optirun glspheres
[ 5469.860889] [ERROR]Cannot access secondary GPU - error: [XORG] (EE)

[ 5469.860914] [ERROR]Aborting because fallback start is disabled.

[when123]

apt-get install bumblebee ,primus

dpkg -l | grep nvidia