Question HDMI port says no signal

Sep 23, 2019
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Hi. So my cousin gifted me a monitor. I Used it as tv for 2 days and then decided to plug it to the pc and use it as a monitor. When i connect the HDMI cable with the monitor it stays black for about 5 seconds and then blue screen appears and it says HDMI no signal. When i plug old monitor works fine. The monitor is Philips 221t