I have Lenovo Y540 which has an option to turn off intel gpu (Optimus) and 90% of the times I turn off Optimus and use the Nvidia GPU because of the performance difference but I switch on the Optimus when I need the battery life, so here's the catch:
when Optimus is switched on I get a black screen so I was trying to add a grub option to turn off or blacklist Nvidia GPU when Optimus is turned on but nothing works I still get a black screen, please help. I don't want to use windows on battery!
tried: nvidia.modeset=0 blacklist nvidia module_blacklist=nvidia
Thank you