As my title says, I have a Lenovo- Ll2264d 21.5 inch IPS LED monitor. And my pc I am trying to use is a IBUYPOWER- Desktop - AMD FX-Series - 8 GB memory - NVIDIA GeForce GT 710 - 1TB Hard drive. So here's my situation. I have a Toshiba Satellite that I plugged a HMDI to HDMI cable into that went from the laptop(Toshiba Satellite) to the monitor. That worked perfectly fine and I had no problems with that. So that means the monitor and the HMDI cable works fine. But when I got the IBUYPOWER pc and tried to plug it in with a HMDI cable and a VGA cable(on seperate tries) it would say it would be connected but on the monitor, when I tried to boot it up, would say "power saving mode" then eventually go into a black screen. Note that the fan and lights are working fine on the pc. So how can I fix this so it will work? My HDMI and VGA cables aren't faulty, the monitor isn't faulty, and the IBUYPOWER pc isn't faulty. So how do I get rid of this "power saving mode" screen without being able to get onto the computer?