[SOLVED] Proxmox 4 Passthrough Help (kind of solved)

[DottedLine]

I am able to get passthrough to work using unRaid, so I know that it can work. When I try to set it up in Proxmox, the VM starts without error, but I get no display from my graphics card. The VM stats show 50% of 2 CPUs and 1.58 of 2GB consistanly being used.

Steps I've taken:

1. added intel_iommu=on ks /etc/default/grub
2. update-grub
3. blacklist nouveau
4. added gpu to 100.conf

Relevant Hardware:

Mobo: GA-H77M-D3H​

CPU: Intel I5-3570​

GPU: NVidia GTX 660Ti
​

pveversion:

proxmox-ve: 4.1-26 (running kernel: 4.2.6-1-pve)
pve-manager: 4.1-1 (running version: 4.1-1/2f9650d4)
pve-kernel-4.2.6-1-pve: 4.2.6-26
lvm2: 2.02.116-pve2
corosync-pve: 2.3.5-2
libqb0: 0.17.2-1
pve-cluster: 4.0-29
qemu-server: 4.0-41
pve-firmware: 1.1-7
libpve-common-perl: 4.0-29
libpve-access-control: 4.0-10
libpve-storage-perl: 4.0-38
pve-libspice-server1: 0.12.5-2
vncterm: 1.2-1
pve-qemu-kvm: 2.4-17
pve-container: 1.0-32
pve-firewall: 2.0-14
pve-ha-manager: 1.0-14
ksm-control-daemon: 1.2-1
glusterfs-client: 3.5.2-2+deb8u1
lxc-pve: 1.1.5-5
lxcfs: 0.13-pve1
cgmanager: 0.39-pve1
criu: 1.6.0-1
zfsutils: 0.6.5-pve6~jessie

lspci:

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller (rev 09)00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4)
00:1c.4 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 5 (rev c4)
00:1c.6 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation H77 Express Chipset LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 7 Series/C210 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04)
01:00.0 VGA compatible controller: NVIDIA Corporation GK104 [GeForce GTX 660 Ti] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GK104 HDMI Audio Controller (rev a1)
03:00.0 Ethernet controller: Qualcomm Atheros AR8161 Gigabit Ethernet (rev 10)
04:00.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 41)
05:00.0 Network controller: Qualcomm Atheros AR9227 Wireless Network Adapter (rev 01)

dmesg | grep -e DMAR -e IOMMU:

[    0.000000] ACPI: DMAR 0x00000000CB8C38B0 0000B8 (v01 INTEL  SNB      00000001 INTL 00000001)[    0.000000] DMAR: IOMMU enabled
[    0.027371] DMAR: Host address width 36
[    0.027372] DMAR: DRHD base: 0x000000fed90000 flags: 0x0
[    0.027380] DMAR: dmar0: reg_base_addr fed90000 ver 1:0 cap c0000020e60262 ecap f0101a
[    0.027381] DMAR: DRHD base: 0x000000fed91000 flags: 0x1
[    0.027384] DMAR: dmar1: reg_base_addr fed91000 ver 1:0 cap c9008020660262 ecap f0105a
[    0.027385] DMAR: RMRR base: 0x000000cc106000 end: 0x000000cc114fff
[    0.027386] DMAR: RMRR base: 0x000000cd800000 end: 0x000000cf9fffff
[    0.027387] DMAR-IR: IOAPIC id 2 under DRHD base  0xfed91000 IOMMU 1
[    0.027388] DMAR-IR: HPET id 0 under DRHD base 0xfed91000
[    0.027389] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping.
[    0.027614] DMAR-IR: Enabled IRQ remapping in x2apic mode
[    0.447564] DMAR: No ATSR found
[    0.447629] DMAR: dmar0: Using Queued invalidation
[    0.447981] DMAR: dmar1: Using Queued invalidation
[    0.447987] DMAR: Setting RMRR:
[    0.447995] DMAR: Setting identity map for device 0000:00:02.0 [0xcd800000 - 0xcf9fffff]
[    0.448143] DMAR: Setting identity map for device 0000:00:14.0 [0xcc106000 - 0xcc114fff]
[    0.448159] DMAR: Setting identity map for device 0000:00:1a.0 [0xcc106000 - 0xcc114fff]
[    0.448171] DMAR: Setting identity map for device 0000:00:1d.0 [0xcc106000 - 0xcc114fff]
[    0.448178] DMAR: Prepare 0-16MiB unity mapping for LPC
[    0.448183] DMAR: Setting identity map for device 0000:00:1f.0 [0x0 - 0xffffff]
[    0.448358] DMAR: Intel(R) Virtualization Technology for Directed I/O
[   10.270499] [drm] DMAR active, disabling use of stolen memory

VM 100.conf:

bootdisk: scsi0cores: 2
cpu: host
ide2: local:iso/en_windows_7_professional_x64_dvd_X15-65805.iso,media=cdrom
memory: 2048
name: test
net0: virtio=22:B7:09:17:CA:82,bridge=vmbr0
numa: 0
ostype: other
scsi0: local:100/vm-100-disk-1.qcow2,size=32G
scsihw: virtio-scsi-pci
smbios1: uuid=fcb24a54-811b-4418-bbf6-5d4fc8015f3a
sockets: 1
machine: q35
hostpci0: 01:00,x-vga=on,pcie=1

I also noticed some drm errors that I'm not sure if they are significant or not.

[    9.971333] [drm] Initialized drm 1.1.0 20060810[   10.370851] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A
[   10.370865] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun

What am I missing?