Has anyone succeeded in running AMT systems headless, with no monitor cable attached?
Noticed that when there is no monitor cable connected, I do not get any visual with the KVM-over-IP either.
Once I do connect the monitor cable the missing visual appears instantly.
I do can access the BIOS and GRUB with kvm-over-ip, so might be a (Debian) Linux only issue.
(it's not the standard screen blanker. pressing a key doesn't solve it)