In my ESXi server,I try to passthrough a 1050Ti to a Windows 10 VM. But after following steps,it often got error code 43.
The problem wasn't in ESXi 6.5,but it appear in ESXi 6.7.
After doing some test, I found the clue.
In my motherboard,there is an option to decide which GPU to use.（CPU or PCIE or Auto）
When there is an iGPU(like i9-9900k) and option choose “Auto”
after host reboot then start the VM,1050Ti works fine
restart the VM,1050Ti got error code 43
reboot host,everything work again
When there is an iGPU(like i9-9900k) and option choose “iGPU”
1050Ti got error code 43 all the time
When there is an iGPU(like i9-9900k) and option choose “PCIE”
1050Ti works fine no matter how many time reboot
When there isn't an iGPU(like i9-9900kf)
1050Ti works fine no matter how many time reboot
It seems that you must disable iGPU totally or you can't get passthrough to work.
I add "hypervisor.cpuid.v0=false" only, and passthrough works fine.
By the way,if "d3d0" in passthrough.map doesn't work,try to enable all ASPM in BIOS.(PCI-E power status control)