My Lenovo laptop has hybrid graphics (both intel, and an nvidia card). Right now under Linux, only the intel is being recognised despite both being active in the bios. Okay, known issue. I installed bumblebee and everything needed to activate the nvidia card, and most tests seem fine. However when I tried to launch Steam using the nvidia card, all the processes decided to hang. Is anyone here familiar with bumblebee and how to get it working?