Does it allow to connect external displays? Last time I checked bumblebee worked almost fine, but it didn't notice I connected an external display to DP hardwired to dGPU, and dGPU stayed powered-off. I got through a few workarounds for that, and even managed to get something incorrectly displayed, but nothing really worked like it should, so I gave up and I'm using this ugly nvidia-prime thing and just remember to set it in "performance mode" before using my laptop with external displays.