Passtrough with 2 nvidia gpu's that have a big driver difference

Operating Systems & Open Source Virtualization
1

I’m kinda new to vfoi and I was looking around to find out how I pass my gtx 750 ti to the guest and keep my gt 220 for the host.

While looking around a bit it seems that I could encounter some problems since their is a big driver gap between those cards.

I already setup ubuntu installation and updated the bios so I would have some decent IOMMU groups with my x570 Gigabyte aorus pro and 3700x.

What is to best/most friendly way to achive a passtrough with this setup?

Most tutorials I found have same generation GPU’s or have an AMD and NVIDIA card so they can simply block the drive of AMD or NVIDIA but I can’t just block the NVIDIA driver because then the host card won’t display a signal.

IOMMU groups F10 bios

IOMMU Group 0:
00:01.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:1482]
IOMMU Group 1:
00:01.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:1483]
IOMMU Group 10:
00:07.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:1484]
IOMMU Group 11:
00:08.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:1482]
IOMMU Group 12:
00:08.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:1484]
IOMMU Group 13:
00:08.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:1484]
IOMMU Group 14:
00:08.3 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:1484]
IOMMU Group 15:
00:14.0 SMBus [0c05]: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller [1022:790b] (rev 61)
00:14.3 ISA bridge [0601]: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge [1022:790e] (rev 51)
IOMMU Group 16:
00:18.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:1440]
00:18.1 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:1441]
00:18.2 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:1442]
00:18.3 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:1443]
00:18.4 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:1444]
00:18.5 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:1445]
00:18.6 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:1446]
00:18.7 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:1447]
IOMMU Group 17:
01:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd Device [144d:a808]
IOMMU Group 18:
02:00.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:57ad]
IOMMU Group 19:
03:04.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:57a3]
IOMMU Group 2:
00:01.2 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:1483]
IOMMU Group 20:
03:08.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:57a4]
05:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device [1022:1485]
05:00.1 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:149c]
05:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:149c]
IOMMU Group 21:
03:09.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:57a4]
06:00.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] [1022:7901] (rev 51)
IOMMU Group 22:
03:0a.0 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:57a4]
07:00.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] [1022:7901] (rev 51)
IOMMU Group 23:
04:00.0 Ethernet controller [0200]: Intel Corporation I211 Gigabit Network Connection [8086:1539] (rev 03)
IOMMU Group 24:
08:00.0 VGA compatible controller [0300]: NVIDIA Corporation GM107 [GeForce GTX 750 Ti] [10de:1380] (rev a2)
08:00.1 Audio device [0403]: NVIDIA Corporation Device [10de:0fbc] (rev a1)
IOMMU Group 25:
09:00.0 VGA compatible controller [0300]: NVIDIA Corporation GT216 [GeForce GT 220] [10de:0a20] (rev a2)
09:00.1 Audio device [0403]: NVIDIA Corporation GT216 HDMI Audio Controller [10de:0be2] (rev a1)
IOMMU Group 26:
0a:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device [1022:148a]
IOMMU Group 27:
0b:00.0 Non-Essential Instrumentation [1300]: Advanced Micro Devices, Inc. [AMD] Device [1022:1485]
IOMMU Group 28:
0b:00.1 Encryption controller [1080]: Advanced Micro Devices, Inc. [AMD] Device [1022:1486]
IOMMU Group 29:
0b:00.3 USB controller [0c03]: Advanced Micro Devices, Inc. [AMD] Device [1022:149c]
IOMMU Group 3:
00:02.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:1482]
IOMMU Group 30:
0b:00.4 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Device [1022:1487]
IOMMU Group 31:
0c:00.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] [1022:7901] (rev 51)
IOMMU Group 32:
0d:00.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] [1022:7901] (rev 51)
IOMMU Group 4:
00:03.0 Host bridge [0600]: Advanced Micro Devices, Inc. [AMD] Device [1022:1482]
IOMMU Group 5:
00:03.1 PCI bridge [0604]: Advanced Micro Devices, Inc. [AMD] Device [1022:1483]
IOMMU Group 6:

2

Use a softdep instead of a blacklist.

1 Like
3

I got it to work by setting the gt 220 as primary gpu and blacklisting the drivers. Somehow ubuntu will still load the primary gpu but with no drivers so the resolution is bad but at least it works.

I only have a problem with passing trough the audio chip, when I pass it trough my system starts to lag and I have to force reset it. Even tough its in its own IOMMU group I it still doesn’t work. I’ve tried to blacklist it but still lags out when passing it.
Anyone know how to handle this audio problem?

4

The audio chip on the GPU? If so, try enabling messaging signal interrupts.

5

No I want to use the audio on my motherboard, The audio on my GPU kinda works but video’s lag when its plays audio over HDMI. But I want to pass the motherboards audio since that is the only one that has a microphone input.

6

This is my exact problem: