Can't turn off/suspend/logout in intel Mode nvidia prime?

When I am using Nvidia graphics card from prime profile , everything works fine. But when I switch to intel graphics card , suddenly I can't do anything from suspend,logout,shutdown,restart. When I try to do one of these it just hangs and I have to manually hold the power button to shutdown.Everything else is fine.

This is my grub parameters.

GRUB_CMDLINE_LINUX_DEFAULT="acpi_osi= acpi_backlight=native"

My laptop is Asus GL552VW , Ubuntu 16.04