Does anyone know how to get OpenGL 4.x working on the Ubuntu 12.04 that ships with Parallels 8? Here's what I've tried: I have Ubuntu 12.04 working fine as guest OS (alongside Windows 8) on a Mountain Lion iMac with NVIDIA GeForce GTX 680MX. Also, in case the topic of GPU acceleration on guest Linux OS is interesting to other OpenGL fans, I can verify there is some ancient (five or six years old, it seems) OpenGL functionality in Ubuntu even as a guest OS. I mention this because I read a user's comment on stack-exchange that they thought Parallels 8 was entirely unable to virtualize GPU acceleration. Although OpenGL support appears to be years old, in fairness to Parallels, they don't focus on Linux guest OS, and they can't know what machine the Ubuntu installs will go on, so I can see why a widely functional "lowest common denominator" GPU driver might be used for virtualization. I read enough to learn that upgrading hardware drivers for Ubuntu as guest on Mountain Lion it is not easy - or at least not identical - to updating graphics drivers on a dedicated install of Ubuntu. The few people who've tried it and then wrote how they did it (which includes blacklisting some drivers, and removing others) have broken their installs. Also, it seemed to me that the OSX Mountain Lion graphics driver is probably the only driver interacting directly with the GPU, and the Ubuntu driver may only have a virtual and indirect connection through the Mountain Lion driver, but perhaps that is not correct or is irrelevant. Documented Parallels 8 support for Ubuntu is pretty thin, and seems non-existent when discussing virtualized graphics card drivers within Ubuntu, but perhaps I overlooked it so would be happy to read up on it if available. Thanks to the forums and to the fellow users and some Parallels engineers who certainly know a lot, and whose comments and threads have indirectly helped me avoid unwittingly destroy my perfectly-working Ubuntu distro...yet!
