> 2. The passed-through card must have a monitor connected.
Regarding this, I don't know about LG, but with a standard QEMU VFIO setup, one use a single monitor connected to the two cards, and switch the input when required.
Regarding this, I don't know about LG, but with a standard QEMU VFIO setup, one use a single monitor connected to the two cards, and switch the input when required.
Just note that not all multi-input monitors are equal though, a small minority appear to the GPU as unplugged when the input selection is changed.