I have been experiencing some issues with my AOC U28P2U display, such as:
(1) HDMI1 port does not function well if source refresh rate is at 60Hz:
- Source signal detection is sketchy -- if not recognized, I have to manually select source or turn monitor off/on again
- Display does not wake from sleep (esp. if display is set to auto detect input / source signal)
- In order for wake from sleep to function, I have to set input to HDM1 only and not auto and/or force refresh rate to 30Hz

(2) PIP/PBP function does not allow me to choose HDMI1 as main source and HDMI2 as sub source and vice-versa. Unfortunately, I don't have a DP adapter so I cannot test it together with the HDMI ports.

I've reached out to the supplier's tech, and they mentioned that there might be an issue with my HDMI1 port, but they couldn't confirm issue#2 as they have never tested it.

For fellow AOC U28P2U users, I would be truly grateful if you could share your own experiences with the U28P2U and confirm if same issues exist and whether these are normal.

Thanks in advance!

-- edited by atreides45 on Jun 25 2021, 04:57 PM