1 2 3 4 5 6 7 8 9 | LANGUAGE=C sudo prime-switch nvidia /etc/modprobe.d is not a file /etc/modprobe.d is not a file /etc/modprobe.d is not a file /etc/modprobe.d is not a file /etc/modprobe.d is not a file Error: can't open /lib/modules/4.9.0-040900-generic/updates/dkms Error: can't open /lib/modules/4.9.0-040900-generic/updates/dkms update-alternatives: error: no alternatives for x86_64-linux-gnu_gfxcore_conf |