I´ve recently bought an Acer Swift 3 SF314-52G-55WQ, with Nvidia GeForce MX150. I´ve tried connecting it through HDMI with many, many monitors and it almost never works (it worked one or two times at most). The monitors (or projectors, or TVs) are HD and they work with 60hz. The cables I use are also fine; I´ve checked.
My brother also has an Acer Swift 3, but it is a previous model (he has the SF514-51-54T8). With his computer, the HDMI always work. So the question is: why doesn´t mine work? Is this normal? Is there something broken?