I recently upgraded from 10.04 to 12.04 on my MacBook 7,1. Now, in any 3d program, strange rectangular artifacts cover some of the screen; they seem to be dependent on displayed objects. This is, of course, having the effect of *gasp in horror* rendering my games unplayable. Before I asphyxiate due to lack of 3d games, or choke on a rectangle, how can I fix this?
I am running Metacity on GNOME-fallback on 12.04.
$ sudo lshw -C video *-display description: VGA compatible controller product: NVIDIA Corporation vendor: NVIDIA Corporation physical id: 0 bus info: pci@0000:02:00.0 version: a2 width: 64 bits clock: 33MHz capabilities: pm msi vga_controller bus_master cap_list rom configuration: driver=nouveau latency=0 resources: irq:16 memory:92000000-92ffffff memory:80000000-8fffffff memory:90000000-91ffffff ioport:1000(size=128) memory:93000000-9301ffff
Video card: NVIDIA Corporation Device 08a0 (rev a2)
Nothing appears under additional drivers, and I would prefer to avoid proprietary software.