Hi, I have a CPU motherboard, a SuperMicro X11SSV-Q with an i7-6700 processor. This is a skylake based system using the Q170 chipset. I am using the onboard video. I am running vanilla Centos 7 (1511). When I put the system to sleep, after resuming from sleep, the system comes alive (I can rlogin fine), but there is no video signal, as reported by the monitor and a blank display. No amount of pressing keys or moving the mouse have any effect. If I then hibernate the system (from the rlogin window), and then resume from that, I have video right where it should be. Is there something I can send or do to wake the video up, at least to try and understand what is not resuming properly? Thanks, ----------------------------------------------------- Russ Poffenberger | System Architecture Group Phone: +1 / 408 / 635-6049 russell.poffenberger@xcerra.com Xcerra Corporation, LTX/Credence Division 1355 California Circle Milpitas, CA 95035, USA -----------------------------------------------------