[Bug 265522] base system/bhyve : gvt_d_setup_opregion: Unable to get OpRegion base and length

From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 31 Jul 2022 20:18:26 UTC

--- Comment #1 from mario felicioni <marietto2008@gmail.com> ---
I have 3 GPUs in my PC. Actually the BIOS uses the geforce 1060 to start it.
So,two GPUs are out and kept free. The Geforce RTX 2080 ti and the Intel
CoffeeLake-S GT2 [UHD Graphics 630]. I'm able to pass through the RTX 2080 ti
to a linux vm,but I'm not able to do the same with the UHD Graphics 630. As I
have explained in the post,there is nothing that keeps it busy. I'm not using
it. Both my monitors are connected to the 1060 using the twinview mode. One is
using the DisplayPort,the other one is using the HDMI port. When I want to pass
the RTX 2080 inside a Linux VM and I need to use my 2 monitor,I detach the HDMI
cable from the 1060 and I attach it to the RTX 2080 ti and it's done. I can use
it inside my bhyve VM. If I don't want to use bhyve,I connect the HDMI cable to
the 1060 and in this case I can use two screens at the same time without
running a VM. Cool. I can do this only with the RTX 2080 ti,but not with the
Intel GPU. If I'm obliged to use it even if I don't use it,I can't imagine how
and in which kind of situation I can pass it through.

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