Showing “Black screen” only is hard to know your issue exactly.

Also NUC6i5SYH is not official supported hardware,  we didn’t run test with it.

But can you check below 3 points to narrow down your issue first:

1,  is your acrn.efi loaded by EFI firmware correctly?

     You can run “ sudo efibootmgr –v” to check if the “ACRN Hypervisor” is first boot option,

    Also you can enter the EFI firmware at boot (using F10) to select “ACRN Hypervisor”

2, check you SOS booted up successfully with right kernel and kernel command line?

You should able to login from remote ssh Client if the OS boot up successfully

3, check if ACRN hypervisor is running properly with “$ dmesg | grep ACRN”

     The right output is:

     $ dmesg | grep ACRN

   [    0.000000] Hypervisor detected: ACRN

   [    1.687128] ACRNTrace: acrn_trace_init, cpu_num 4

   [    1.693129] ACRN HVLog: acrn_hvlog_init

Thanks

ailin