I have the Nvidia MX 150 graphics card in my Asus S15 Vivobook running Kubuntu 18.04.
After I install the Nvidia graphics driver, everything runs great except that the system does not wake up after sleep. I have tried multiple versions of the driver, from 340 up to 390, but none of these fixes the problem. I have tried all the fixes I have found on different sites, like updating grub, updating the kernel, and a few other hacks. Unfortunately nothing works. Maybe it's an issue with my MX150 graphics card.