Back in the start of the century I used to run two X servers. One with a Linux desktop (tried various stuff) and one with Nvidia's proprietary kernel module, pu

Back in the start of the century I used to run two X servers. One with a Linux desktop (tried various stuff) and one with Nvidia's proprietary kernel module, purely to play games, and have any crashes not lock up my whole machine. It worked beautifully. Eventually I switched to the red side, and I stayed there as much as possible.