I have xserver-xorg-video-nouveau 1.0.16-1 installed, no proprietary graphics driver installed and the display did work so the driver must have been loaded.
I have three problems related to the graphics card and/or the driver:
- it does have glitches where it shortly shows green space across the screen
- when running an emulator the graphics performance seems to be at least as bad as with CPU-only
- when testing with the emulator my computer often froze so that I had to force-reboot by holding the power button