I have set up a combined dual boot/Virtualbox system with Windows 8.1 as my main OS and a Ubuntu 14.04 LTS hard drive which can also be accessed as a virtual machine by VirtualBox using this guide.
I would like to use the proprietary fglrx drivers for my ATI Radeon R9 285x when I actually boot into Ubuntu because I expect better performance, and even more for the most trivial reason that the fan of my VGA is running much louder when using the open source driver. But when I install them, I am no longer able to access my Ubuntu desktop via VirtualBox and get stuck in Login-loop, most likely because it can't load the proper drivers.
Is it possible to let the system switch between the fglrx driver and the Virtualbox-guest-addition-driver, depending on whether it is booted regularly or in a virtual machine?
I would like to use the proprietary fglrx drivers for my ATI Radeon R9 285x when I actually boot into Ubuntu because I expect better performance, and even more for the most trivial reason that the fan of my VGA is running much louder when using the open source driver. But when I install them, I am no longer able to access my Ubuntu desktop via VirtualBox and get stuck in Login-loop, most likely because it can't load the proper drivers.
Is it possible to let the system switch between the fglrx driver and the Virtualbox-guest-addition-driver, depending on whether it is booted regularly or in a virtual machine?