I am writing this after only a few days of owning this monitor (05/18/2020) and so far it is fantastic. The main reason I bought this was because I wanted the best refresh and resolution and all the other specs were tempting too. There were some settings I screwed up on my Xbox One X myself, but after fixing them I can finally play games at 1440p at 120Hz. The Xbox doesn't overclock to 144Hz, so I can't blame Acer for that. On the monitor, "hdmi 2" is a high speed 2.0 port, not "hdmi 1" which is a 1.42 port. In Xbox Settings > General > TV & Display Options > Resolution should be 1440p > Refresh Rate should be 120Hz3. If 1440p or 120Hz is not appropriate, click Video Modes on the right and make sure Allow variable refresh rate and Allow ycc 4:2:2 are checked. If you can't do any of the above, your Xbox is either unable to do it (old model) or you were sent the wrong monitor.5. Just an extra tip to help you along the way. In the monitor's OSD settings, navigate down to "OSD" under "Picture", "Color", "Sound" and "Games" and enable the "Refresh Rate Number" which shows the refresh rate in large yellow font in the displayed in the upper right corner. This will confirm what refresh rate you're running at while you play around with the settings. Also, I can't enable the 24Hz and 50Hz options, but I don't care. And I've never messed with the TV calibration or any other settings. I will do my best to update this if anything changes. It remains to be seen if this is actually compatible with the new Xbox series coming later this year.
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