Well “energy save” mode switches off the HDMI signal so if your screen “stays very dark” it is not in energy save mode but in “dim” state.
Are you on the latest update? Maybe try to disable the screensaver, see this thread
Well “energy save” mode switches off the HDMI signal so if your screen “stays very dark” it is not in energy save mode but in “dim” state.
Are you on the latest update? Maybe try to disable the screensaver, see this thread