HP ProDesk 600 G2 "No signal" on monitor after graphics driver loads

I have installed Sonoma 14.6.1 on my HP ProDesk 600 g2, with my Skylake iGPU spoofed to Kaby Lake. When booting with -igfxvesa, the system works but has no graphics acceleration (obviously). But when i try to enable graphics, the system boots and i can SSH into it but the monitor loses signal. The monitor is connected via VGA (which on Skylake and newer is converted to DP internally). I have also tried setting deviceproperties to Skylake and booting Monterey, but no dice.

EFI folder: https://drive.google.com/file/d/14GgzLoz-BNrzM7UtCI0mQwitFUfF3hxF/view?usp=sharing

Specs:

CPU: i5-6500T (Skylake)

GPU: Intel HD 530

RAM: 8GB DDR4 2133

Chipset: Q150

Audio: Realtek ALC221

Ethernet: Intel I219-LM

WiFi: Intel Wireless 7265

Storage: NVME Sandisk WD Blue SN500

BIOS: 02.60 Rev A (latest)

Will provide more info if needed

submitted by /u/kefir5042
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