u/Large_Ad_3622

I have already tested other cables and another machine but the monitor still does not connect, when I change the HDMI input of the monitor and take the hang cable from it and then put it back on it temporarily connects with my notebook but does not give image and then disconnects.

My lg monitor worked quietly with my notebook until when I disconnected and connected again to clean the area it stopped recognizing the HDMI input. I have already tested three cables that I had here at home in the two entrances of the monitor and even bought a new one and nothing, used my brother's notebook and also did not get any results. He even calls when I connect to the notebooks but says that it is without a signal.