viumden

I tried a quick passthrough to a working (with VNC as default video card) MacOS Big Sur, no matter keep the VNC video card or not, the os just doesn't boot, maybe some tuning in OpenCore configuration is needed...

Nothing else, it seems hot plug doesn’t work, but a fresh reboot is fine to detect the card, and then the passthrough just works, I tried Hiveos which has the AMD driver included out of box, I might try macOS Big Sur later when I have time.

I did a BIOS update for ASRock Fatal1ty Z370 Gaming-ITX/ac to version 4.30, and changed the thunderbolt security to none, finally the thunderbolt device can be detected after a unraid reboot, and I managed to passthrough an external eGPU RX560 to a linux VM.

In BIOS, I set security to none, doesn’t work. In BIOS, I set security to user, but then in unraid below sys folder doesn’t exist: /sys/bus/thunderbolt/devices

I tried attach a Wavlink UE02 thunderbolt NVME storage to ASRock Fatal1ty Z370 Gaming-ITX/ac thunderbolt port, on unraid Version: 6.9.0 with kernel 5.10 I believe, nothing happened, the server just won't detect it, no matter hot plug, or power-off-reboot plug. lspci -tnnv shows below output, just not thunderbolt device, and the attached additional nvme storage disk just doesn't show up anywhere: -[0000:00]-+-00.0 Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers [8086:3ec2] +-01.0-[01]--+-00.0 NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:1b06] | \-00.1 NVIDIA Corporation GP102 HDMI Audio Controller [10de:10ef] +-14.0 Intel Corporation 200 Series/Z370 Chipset Family USB 3.0 xHCI Controller [8086:a2af] +-14.2 Intel Corporation 200 Series PCH Thermal Subsystem [8086:a2b1] +-16.0 Intel Corporation 200 Series PCH CSME HECI #1 [8086:a2ba] +-17.0 Intel Corporation 200 Series PCH SATA controller [AHCI mode] [8086:a282] +-1b.0-[02]-- +-1c.0-[03]-- +-1c.4-[04-3c]-- +-1d.0-[3d]----00.0 Silicon Motion, Inc. SM2262/SM2262EN SSD Controller [126f:2262] +-1f.0 Intel Corporation Z370 Chipset LPC/eSPI Controller [8086:a2c9] +-1f.2 Intel Corporation 200 Series/Z370 Chipset Family Power Management Controller [8086:a2a1] +-1f.3 Intel Corporation 200 Series PCH HD Audio [8086:a2f0] +-1f.4 Intel Corporation 200 Series/Z370 Chipset Family SMBus Controller [8086:a2a3] \-1f.6 Intel Corporation Ethernet Connection (2) I219-V [8086:15b8] Tried force power on thunderbolt device: echo 1 | tee /sys/bus/wmi/devices/86CCFD48-205E-4A77-9C48-2021CBEDE341/force_power but still the same lspci -tnnv output. lsmod | grep thund give below output, seems indicating kernel mod is loaded, but actual thunderbolt device is not detected anyway: intel_wmi_thunderbolt 16384 0 wmi 24576 1 intel_wmi_thunderbolt No clue how to proceed...In theory the linux kernel should have thunderbolt support be default, but not understand why it just doesn't work for unraid...

So what is the proven working hardware collection setup now you have bought? Is it with the comparable size, power usage and build quality like MS Gen8?

Same problem for me. My setup: hp microserver Gen8 E3 1265L V2 Nvidia GTX750TI with HDMI output Enabled all suggested parameters in this thread, but cannot get the VM started when the GPU is selected for passthrough, the syslog error: Tower kernel: vfio-pci 0000:07:00.1: Device is ineligible for IOMMU domain attach due to platform RMRR requirement. Contact your platform vendor. My lspci: 07:00.0 VGA compatible controller: NVIDIA Corporation GM107 [GeForce GTX 750 Ti] (rev a2) 07:00.1 Audio device: NVIDIA Corporation Device 0fbc (rev a1) My modified syslinux.cfg: default /syslinux/menu.c32 menu title Lime Technology prompt 0 timeout 50 label unRAID OS menu default kernel /bzimage append pcie_acs_override=downstream vfio_iommu_typel.allow_unsafe_interrupts=1 initrd=/bzroot label unRAID OS Safe Mode (no plugins) kernel /bzimage append initrd=/bzroot unraidsafemode label Memtest86+ kernel /memtest # find /sys/kernel/iommu_groups/ -type l /sys/kernel/iommu_groups/0/devices/0000:00:00.0 /sys/kernel/iommu_groups/1/devices/0000:00:01.0 /sys/kernel/iommu_groups/2/devices/0000:00:06.0 /sys/kernel/iommu_groups/3/devices/0000:00:1a.0 /sys/kernel/iommu_groups/4/devices/0000:00:1c.0 /sys/kernel/iommu_groups/5/devices/0000:00:1c.4 /sys/kernel/iommu_groups/6/devices/0000:00:1c.6 /sys/kernel/iommu_groups/7/devices/0000:00:1c.7 /sys/kernel/iommu_groups/8/devices/0000:00:1d.0 /sys/kernel/iommu_groups/9/devices/0000:00:1e.0 /sys/kernel/iommu_groups/10/devices/0000:00:1f.0 /sys/kernel/iommu_groups/10/devices/0000:00:1f.2 /sys/kernel/iommu_groups/11/devices/0000:07:00.0 /sys/kernel/iommu_groups/11/devices/0000:07:00.1 /sys/kernel/iommu_groups/12/devices/0000:02:00.0 /sys/kernel/iommu_groups/13/devices/0000:03:00.0 /sys/kernel/iommu_groups/13/devices/0000:03:00.1 /sys/kernel/iommu_groups/14/devices/0000:04:00.0 /sys/kernel/iommu_groups/15/devices/0000:01:00.0 /sys/kernel/iommu_groups/15/devices/0000:01:00.1 /sys/kernel/iommu_groups/15/devices/0000:01:00.2 /sys/kernel/iommu_groups/15/devices/0000:01:00.4 Also BIOS modification according to this advisory has been applied for PCI Slot 1: http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04781229&sp4ts.oid=5249566 Any ideas to go forward?