I have very interesting problem when i plug my HDMI to my monitor. It shows "No Signal" and I don't know from what is coming. Hope somebody know an resolve for this issue and answer me. First when I bought it, I installed rasbian lite and monitor worked, then i decided to reinstall the raspberry , but second time it says " no signal", I tryed to headless start and worked. Also before second reinstall I decided to change my raspberry case and added new one with fan which I connected to the GPIO pins, but finally I decided to use the normal case for now, because temperature was good and when I tryed to plug HDMI , this happened. Also I don't have micro hdmi to hdmi I use Micro HDMI Adapter, to connect it but i don't know how first time it works and second time doesn't work. I think something limits the Voltage coming from the HDMI port and can't be powered or something other. I tryed with hdmi_safe 1 // hdmi_force_hotplug=1 // config_hdmi_boost=4 // hdmi_group=2 and still no result. Hope somebody helps me. I'll be very glad.