Your monitor can enter power saving mode due to a drained battery, no power supply or prolong Est. reading time: 9 minutes but still I am facing same issue.
Power saving mode is a feature designed to conserve energy when a screen is not actively in use. If you find your screen in this mode, there's no need to panic.
This monitor just doesn't seem to support any power saving mode: it won't shut down when the computer tells it to do so, and it won't turn on when a HDMI ...
I just bought a monitor, connected it via HDMI and the monitor won't turn on. Or, well, it turns on and within less than a second goes into power saving mode.