Hi, several months ago Alex Williamson added a patch to the linux kernel to enable VGA arbiter support for the IGD of Intel Core CPUs [1]. But just a month after that the patch was reverted [2]. With these patches I am able to use VFIO and Qemu to passthrough a GTX 770 while using the Intel HD of a i7 4771 on the host for X.Org/XFCE. Using the stock 3.14 kernel, without these patches, it doesn't work. I believe the Nvidia card doesn't get initialized correctly...the screen stays black and the guest OS is unreachable via network. What is required to get these patches back into the mainline kernel? I can not reproduce the issues described in the revert commit log, perhaps we just need more testing? Regards, Friedrich [1] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=81b5c7bc8de3e6f63419139c2fc91bf81dea8a7d [2] https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ebff5fa9d545574324095d9c6a3cb80c9157abc5 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx