Comment 10 for bug 1175513

I installed Windows 8 with VFIO_PCI_VGA, vfio-vga-reset branches and "-vga none -device vfio-pci,host=02:00.0,x-vga=on" I received an error:

"qemu-system-x86_64: Attempt to reset PCI bus for VGA support failed (Inappropriate ioctl for device). VGA may not work." on start.

Then I installed the catalyst drivers. I started the Valley benchmark and the video card is working in normally 3D mode. After rebooting the host system does not hang, but in guest graphics card was in powersafe mode with 100 mhz GPU and 300 mhz memry clocks.