Proxmox not detecting iGPU on E3C246D4U2 (multi-monitor support is enabled)

[epoxymonk]

MB: E3C246D4U2-2L2T flashed to BIOS 2.31

CPU: Xeon E2146g (ES/QS?)

Primary Goal: Plex and Security Camera monitoring

I jumped on an E2146g on Ebay for $135; when it arrived yesterday I discovered to my chagrin that this was an Intel Confidential chip. In my defense ES was not listed in the the title or description, but the listing image clearly shows this, which I missed in my excitement at the deal. (I know, if it's too good to be true...)

I went forward with the build. The motherboard identified the CPU as "Genuine Intel(R) CPU 0000 @ 3.50GHz". Despite this I was able to install Proxmox and transfer the VMs from my previous system. However, I do not see the iGPU on lspci. I've already followed the steps here to enable multi-monitor support, and even tried installing a beta version of the BIOS from the ASROCk website.

My problem at this point is that I am not sure whether the issue is with something in my settings (BIOS or Proxmox) or with the CPU itself. Any advice is greatly appreciated!



Here is the output of lspci in case it is helpful:

00:00.0 Host bridge: Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers (rev 07)
00:08.0 System peripheral: Intel Corporation Xeon E3-1200 v5/v6 / E3-1500 v5 / 6th/7th/8th Gen Core Processor Gaussian Mixture Model
00:12.0 Signal processing controller: Intel Corporation Cannon Lake PCH Thermal Controller (rev 10)
00:14.0 USB controller: Intel Corporation Cannon Lake PCH USB 3.1 xHCI Host Controller (rev 10)
00:14.2 RAM memory: Intel Corporation Cannon Lake PCH Shared SRAM (rev 10)
00:14.5 SD Host controller: Intel Corporation Device a375 (rev 10)
00:15.0 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH Serial IO I2C Controller #0 (rev 10)
00:15.1 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH Serial IO I2C Controller #1 (rev 10)
00:16.0 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller (rev 10)
00:16.1 Communication controller: Intel Corporation Device a361 (rev 10)
00:16.4 Communication controller: Intel Corporation Cannon Lake PCH HECI Controller #2 (rev 10)
00:17.0 SATA controller: Intel Corporation Cannon Lake PCH SATA AHCI Controller (rev 10)
00:1b.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #17 (rev f0)
00:1b.4 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #21 (rev f0)
00:1c.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #1 (rev f0)
00:1c.2 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #3 (rev f0)
00:1c.3 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #4 (rev f0)
00:1d.0 PCI bridge: Intel Corporation Cannon Lake PCH PCI Express Root Port #9 (rev f0)
00:1e.0 Communication controller: Intel Corporation Cannon Lake PCH Serial IO UART Host Controller (rev 10)
00:1f.0 ISA bridge: Intel Corporation Cannon Point-LP LPC Controller (rev 10)
00:1f.4 SMBus: Intel Corporation Cannon Lake PCH SMBus Controller (rev 10)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Cannon Lake PCH SPI Controller (rev 10)
02:00.0 Ethernet controller: Intel Corporation Ethernet Controller 10G X550T (rev 01)
02:00.1 Ethernet controller: Intel Corporation Ethernet Controller 10G X550T (rev 01)
03:00.0 PCI bridge: ASPEED Technology, Inc. AST1150 PCI-to-PCI Bridge (rev 04)
04:00.0 VGA compatible controller: ASPEED Technology, Inc. ASPEED Graphics Family (rev 41)
05:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
06:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)