From what I recall, Linux cares about the underlying PCI configuration
whereas Windows does not. Have you tried attaching your GPU to an
ioh3420 root port? That should rectify the problem.
See also: https://www.redhat.com/archives/vfio-users/2016-May/msg00010.html
On 02/26/2017 09:43 AM, [email protected] wrote:
Thank you for your reply.
I have a Core i7 4770 running on ASROCK Fatal1ty Z87 Professional,
32GB RAM, Sapphire Tri-X R9 290.
I tried using OVMF too and had same results, unfortunately. Windows
works fine but Linux do not.
On Sun, 2017-02-26 at 03:15 +0100, Tomáš M. wrote:
What is your HW?
I would recommend trying the whole thing on Arch Linux using this
https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF
Although I don't have experience with OVMF, using seabios happily
with RX480.
On Sat, Feb 25, 2017 at 8:59 PM, <[email protected]
<mailto:[email protected]>> wrote:
Hi,
For quite some time I have been able to do a pass-through of R9 290 to
Windows VMs using KVM. The problem is that I tried to use Linux and it
does not work. Tried Fedora and Ubuntu and both did not work. Funny
thing is that Ubuntu startup/shutdown screens show on the secondary
monitor but not the system itself.
I tried using i440FX and Q35, same results. Used the same configuration
I use for my working Windows VMs.
I had opened a but few months ago but no answer so far.
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1
<https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1>
633777
I just wonder if someone was able to bypass this problem or has some
suggestion.
Thank you,
Carlos
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