Hello! I have a Fujitsu Lifebook T Series with Windows 10 that I have been using to display on a LCD and projector via HDMI for a year. The HDMI display suddenly stopped working. The computer detects when it's connected to a display device, but the external display is blank. The displays are set to the right input. On the notebook, I can cycle through pc only, duplicate, extend, etc. to no avail. The notebook behaves the same when projecting to two different devices. Both of those devices have been successfully tested with another computer. I replaced the HDMI cable. I updated the graphics driver. I couldn't find any problems in the power settings or audio settings. I don't know what else to do. Would someone please help me?