I'm experiencing some issues with my Ubuntu 12.04 VM (Parallels Desktop 8, running on a Late 2011 15" MacBook Pro, OS X 10.8.2). I'm running Unity 3D and while using the integrated graphics (Intel HD 3000) everything is fine, but when my Mac switches to discrete graphic card (AMD Radeon HD 6750M) a lot of graphic glitches appears (Ubuntu desktop sometimes flashes, some parts of the screen become black, etc...). This problem is really annoying... does someone else experiences this too? Is there any way to fix it? Thanks.
