Hello Tim, All, Just an Update, (copied from bugs mailing list to keep you in the loop,
Proxmox5.0 running on AMD Opteron G2 2435 Based systems are NOT affected by the bug So the Bug seems to only affect Intel systems (well) IvyBridge Xeon e5 2660-v2 or Xeon X5650 based systems the OPenBSD 6.1 Release and OpenBSD Current systems running on proxmox 5.0 ve run fine without the Standard VGA Display...on Intel systems (ie they are operating on serial console only) I hope this helps